Advantage: 1 TCI tricone bit, steel teeth tricone bit,rock bit,milled tooth bit,tci bit,steel tooth bit 2 Certified by ISO9001&API 3 Wide size code 4 Best price 5 Delivery on time 6 High quality and competitive price 7 rubber seal or metal seal 8 including drill rods,drill collar,rerun steel tooth bits, ,used drill bits stock,used mud pumps,etc 9 be used for water well, oil field, underground, construction, geothermal, directional boring 114-117, 127 Soft Formation Tooth Bits The 114-117 bits are used to drill low-compressive strength, soft formation. Long projection tooth lengths are used on high offset cones to provide the greatest penetration rates possible. Wear-resistant hard facing is used to control tooth wear. On the softest bits type this hard facing completely covers the bit teeth. 127 Medium-Hard Formation Tooth Bits The 127 bits are used to drill high-compressive strength, medium hard formations. Short projection teeth with reduced crest length are used in this series of bit designs. Durable hard facing is applied to reduce tooth wear. 437 Soft Formation TCI Tricone Bits The 437 TCI bits are used to drill low compressive strength, very soft formations. TCI bits maximize the use of both conical and chisel tungsten carbide inserts of large diameters and high projection. This cutting structure design, combined with maximum cone offset, result in high bit penetratione rates. The deep intermesh of cutter rows prevents bit bailing in sticky formations. 517 Medium Formation TCI Tricone Bits The 517 features aggressive chisel tungsten carbide insert on the heel rows and inter rows. This design provides a fast drilling rate and added cutting strcture durability in medium-to-medium hard for-mationes. The HSN rubber O-ring provides adequate sealing for bearing durability. 637 Hard Formation TCI Tricone Bits The 637 bits can be used to drill hard and abrasive forma-tions. Wear-resistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. Maximum numbers of hemispherical-durability and long life. 617 Medium-Hard Formation TCI Tricone Bits The 617 feature robust chisel tungsten carbide inserts on the heel row and conical on the inner rows. This design provides a fest drilling rate and added cutting structure durability in medium to medium hard formations. The HSN rubber O-rin provides adequate sealing for bearing durability.
Advantage: 1 TCI tricone bit, steel teeth tricone bit,rock bit,milled tooth bit,tci bit,steel tooth bit 2 Certified by ISO9001&API 3 Wide size code 4 Best price 5 Delivery on time 6 High quality and competitive price 7 rubber seal or metal seal 8 including drill rods,drill collar,rerun steel tooth bits, ,used drill bits stock,used mud pumps,etc 9 be used for water well, oil field, underground, construction, geothermal, directional boring 114-117, 127 Soft Formation Tooth Bits The 114-117 bits are used to drill low-compressive strength, soft formation. Long projection tooth lengths are used on high offset cones to provide the greatest penetration rates possible. Wear-resistant hard facing is used to control tooth wear. On the softest bits type this hard facing completely covers the bit teeth. 127 Medium-Hard Formation Tooth Bits The 127 bits are used to drill high-compressive strength, medium hard formations. Short projection teeth with reduced crest length are used in this series of bit designs. Durable hard facing is applied to reduce tooth wear. 437 Soft Formation TCI Tricone Bits The 437 TCI bits are used to drill low compressive strength, very soft formations. TCI bits maximize the use of both conical and chisel tungsten carbide inserts of large diameters and high projection. This cutting structure design, combined with maximum cone offset, result in high bit penetratione rates. The deep intermesh of cutter rows prevents bit bailing in sticky formations. 517 Medium Formation TCI Tricone Bits The 517 features aggressive chisel tungsten carbide insert on the heel rows and inter rows. This design provides a fast drilling rate and added cutting strcture durability in medium-to-medium hard for-mationes. The HSN rubber O-ring provides adequate sealing for bearing durability. 637 Hard Formation TCI Tricone Bits The 637 bits can be used to drill hard and abrasive forma-tions. Wear-resistant tungsten carbide inserts are used in the outer rows to prevent loss of bit gauge. Maximum numbers of hemispherical-durability and long life. 617 Medium-Hard Formation TCI Tricone Bits The 617 feature robust chisel tungsten carbide inserts on the heel row and conical on the inner rows. This design provides a fest drilling rate and added cutting structure durability in medium to medium hard formations. The HSN rubber O-rin provides adequate sealing for bearing durability.
PDC Bits' ,Diamond Bits' cutter exposure is optimized to insure the bit can achieve higher ROP is soft to medium formations. 1.Cutting structure is force balanced and bit blade is asymmetrically designed so that the load on bit is balanced that resulting better stability of the bit. 2.Main cutter are high performance PDC cutters to insure service life of the bit while improving ROP. 3.Cutter exposure is optimized to insure the bit can achieve higher ROP is soft to medium formations. 4.Shock absorbers are designed to make the bit capable of drilling through formations with hard strigers. 5.Hydraulic system of the bit is optimized using dynamic flow pattern simulation technology to enhance cleaning and cooling effects of the bit to effectively prevent bit from balling.
ZQ Drill Pipe Power Tong is an ideal wellhead tool for oil drilling,widely applied in madding-up and breaking-out for well drilling and repairing on offshore and land.Ppen-throat design of the ZQ-series with high mobility allows escaping from drilling pipe freely .The tong is a combination of spinning tong and torque tong .It substitutes cathead,suspension tong and spinning rope in making-up and breaking-out.The Tongs are designed and manufactured according to API Spec7kSpecification for Drilling Equipment.
Product Description: 1. Bit Breakers The Bit Breakers are suitable to make up or break out the drilling bit during the oil well drilling and repairing operations. The Users should be chosen the bit breaker according to the size and model of the drilling bit. Feature:Improve support and retention Advantage:Manage the magnitude cutter loading and bit torque Benefit:Improved bit durability and directional responsiveness Advantage:Higher nozzle counts and/or fixed ports to best serve cleaning,cooling and cuttings evacuation requirements with available hydraulic flows.Allow for higher flow rates with minimal increase in pump pressure. 2. Detailed introduction to Bit breaker 1) Bit breaker is mainly used to screw on or off a rock bit to the bottom of drill string. 2) It can also prevent the rock bit from dropping into well hole. 3) The price of it is cheap and the use of it is safety and reliable. 4) It is easy to operate. First, the bit breaker is placed on well hole and then put the rock bit onto it. Turn it to screw on or off the bit by turnplate.
Shale shaker is first phase solids control equipment in drilling fluids processing system, also known as key solids control equipment in drilling mud system, shale shaker decides performance of the whole solids control system. Solids Control can design double shakers and triplicate shakerson single skid according to clientsâ??special requirements and also supply relevant connecting manifold, according to current industry situation,we provide both third generation linear motion shale shaker and fourth generation balanced elliptical shale shaker. shale shaker absorbed advanced tech at home and abroad ,complete series shale shaker can meet customersâ?? variable demand. Clients feedback proved the advantages of this kind of shale shaker: high G-force, wide screen area, compressed structure, cost-effective, etc. Main Prooerties Patent shale shaker deck angle adjustable while working, mechanical deck angle adjustment with reliable performance. Patent tighten rubber sealing for shale shaker deck and screen, long life and easy replacement. Shale shaker bottom deck made from Stainless Steel for long service life. Heat treatment on complete shale shaker deck for High G force operation. Pretensioned shale shaker screen for fast screen replacement Famous Brand Vibration Motors : IEC Ex, ATEX and UL Certified Electrical components: SIEMENS, Schneider Brand Flexible feeding type including Weir Feed, Top Feed, and Hopper Feed for different applications.
BOP PART NAME: top sealing, front sealing, pipe ram, blind ram, slip ram, shear ram, spherical packer / annular bop packing element, bonnet, piston, shell. APPLY TO BELOW BOP: Brand: SHENKAI BOP. RONGSHENG BOP ETC OTHER FAMOUS BRAND BOP Type :Annular BOP, Single Ram BOP, Double Ram BOP, Shear Ram BOP Standard: API Spec 16A,16C Working pressure:2000psi-15000psi(14 Mpa-105Mpa) Operating temperature:-18deg--121deg Bore size:7 1/16"-21 1/4" Top & nottom connection:Flanged,studded
We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion. Slip Groove, Elevator Groove and Size: Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines. Thread Protectors: Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.
1. Tungsten Carbide Matric PDC Possesse high weqar resistance and impact resisitance. 2.Parabolic Crown profile and maximizes junk slot area can clean bit better, and prolong the bit working life. 3.Applying hydraulics balance design,5 renewal nozzles and reasonable nozzles locking angle can gain ideal fluid field in well bottom, fully clean and cool cutter, and prolong the cutter working life. 4. Non- symmetry blade arragement enhances drilling well balance. 5. Optimizaiton for cutter shape, slant angle, cutter numbers prolong the cutter working lift in combination withe high quality PDC cutter, and improve ROP and drilling efficiency. 6.It can be used on rotary or down hole motor. 7.High HIS is recommended. Product Advantages: 1. PDC cutters for high speed drilling; 2. All cutters are premium grade for extended bit life and durability; 3. Cutter layout is force balanced to drill a precise round hole and reduce bit whirl; 4. Large junk slots and flushing ports; 5. Advanced geometric design for faster penetration; 6. Gauge pads have tungsten carbide inserts for maximum wear resistance;
BOP parts that we supply all come from original manufacturers, they are 100% interchangeable. BOP PART NAME: top sealing, front sealing, pipe ram, blind ram, slip ram, shear ram, spherical packer, bonnet, piston, shell. APPLY TO BELOW BOP: Brand: HYDRIL , SHENKAI BOP. RONGSHENG BOP ETC OTHER FAMOUS BRAND BOP Type :Annular BOP, Single Ram BOP, Double Ram BOP, Shear Ram BOP Standard: API Spec 16A,16C Working pressure:2000psi-15000psi(14 Mpa-105Mpa) Operating temperature:-18deg--121deg Bore size:7 1/16"-21 1/4" Top & nottom connection:Flanged,studded
Product Description Lake series mud agitator is part of the drilling fluids solids control equipment, which is mainly used to agitate and mix the drilling mud to prevent solids particles from depositing in the circulating tank and to stabilize the performance of drilling fluids. It is composed of explosion-proof motor, speed reducer, motor base and blade. The motor and speed reducer, speed reducer and impeller shaft are connected by steel coupling. The impeller is welded with four blades. It can be used used for solid-phase separation in drilling fluid circulating system. Features: (1). Hellical-bevel gearbox. (2). Explosion-proof electric motor. (3). Able to process 20 ppg drilling fluids. (4). Power available ranging from 2.2 to 22 Kw. (5). Compact, quiet, smooth and easy to maintain. (6). Durable, single reduction worm gear drive. (7). Fewer moving parts, less maintenance. (8). Compact design without coupling, IEC top brand gear box. (9). C-Face Explosion proof electrical motor direct coonnection with gear box, ATEX, IEC Ex, and Marine. Company Information Drilling Mud Agitator for Solid Control SystemLake Petro has been focusing on the oil and gas equipment supply more than 9 years. We always consider to support the customer economic cost, stable quality and comforable service. FAQ How can I place order? A: You can contact us by email about your order details, or place order on line. How can I pay you? A: After you confirm our PI, we will request you to pay. T/T (HSBC bank), Western Union are the most usual ways we are using. What isthe order procedure? A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 7-15days if we donâ??t have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you. How do you take care when your clients received defective products? A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.
Description: which is a matrix body PDC bit four to eight curved blades using arc-type ang short parabolic shape design, the rational allocation of different functions small size cutters,so that the PDC bit have a strong impact resistant, hyfrualic balance design, with each balde cuttting the amount of displacement is proportational to the volume of cutttings transports to match the PDC bit cutting transports capacity optimization. while using a dynamic flow simulation technlogy to optimize the hydraulic design of the PDC bit, so bottom hole flow field optimization, enhanced PDC bit cleaning, coolling capacity,more optimum bottom hle flow pattern and anti- balling. Medium hard to hard formations with high compressive strength and abrasive, such as shale, limestone, anhydrite, sandstone and so on The main structure features: Tungsten carbide matrix PDC possesses high wear resistance and impact resistance. Parabolic crown profile and maximizes junk slot area can clean bit better, and prolong the bit working life. Applying hydraulics balance design, 5 renewal nozzles and reasonable nozzles locating angle can gain ideal fluid field in well bottom, fully clean and cool cutter, and prolong the cutter working life. Non-symmetry blade arrangement enhances drilling well balance. Optimization for cutter shape, slant angle, cutter numbers prolong the cutter working life in combination with high quality PDC cutter, and improve ROP and drilling efficiency. It can be used on rotary or down hole motor. High HIS is recommended. Product Advantages: 1. PDC cutters for high speed drilling; 2. All cutters are premium grade for extended bit life and durability; 3. Cutter layout is force balanced to drill a precise round hole and reduce bit whirl; 4. Large junk slots and flushing ports; 5. Advanced geometric design for faster penetration; 6. Gauge pads have tungsten carbide inserts for maximum wear resistance;
BOP parts that we supply all come from original manufacturers, they are 100% interchangeable. BOP PART NAME: top sealing, front sealing, pipe ram, blind ram, slip ram, shear ram, spherical packer, bonnet, piston, shell. APPLY TO BELOW BOP: Brand: HYDRIL , SHENKAI BOP. RONGSHENG BOP ETC OTHER FAMOUS BRAND BOP Type :Annular BOP, Single Ram BOP, Double Ram BOP, Shear Ram BOP Standard: API Spec 16A,16C Working pressure:2000psi-15000psi(14 Mpa-105Mpa) Operating temperature:-18deg--121deg Bore size:7 1/16"-21 1/4" Top & nottom connection:Flanged,studded
We can produce all types of drilling rods such as HDD drilling rods, oil drilling rods, geological drilling rods, anchoring drilling rods and other special drilling rods, and trenchless special drilling tools such as pilot guide bits, swivels, ream bits, reducer unions,pneumatic pipe-rammer,hydraulic power break out tong for drill pipe. Pipe Size 40-200mm
From WLA to WLP, Parallel Threaded Drill Rods, DCDMA sizes AW-HW, and Metric sizes 42mm to 90mm, tapered threaded drill rods, DCDMA sizes AWY to NWY, AWJ, BWJ and S75 drill rods. Specification: 1. Our drill rods are of the highest quality ,are manufactured to exacting specifications using advancing maching technoogy. 2. They are manufactured from seamless steel tube by cold drawn.The material is XJY850/30CrMnSiA which meets the global standard. 3. Drill rods are made from quality heat treated materials which ensure superior strength, wear resistance and toughness in the most demanding applications. 4. Rods and casing are manufactured under stringent industry standards, and are field tested under a variety of conditions. 5. All rods are designed to be compatible with other rods manufactured to the standard DCDMA.
Product Description which is a matrix body PDC bit four of five curved blades using arc-type ang short parabolic shape design, the rational allocation of different functions small size cutters,so that the PDC bit have a strong impact resistant, hyfrualic balance design, with each balde cuttting the amount of displacement is proportational to the volume of cutttings transports to match the PDC bit cutting transports capacity optimization. while using a dynamic flow simulation technlogy to optimize the hydraulic design of the PDC bit, so bottom hole flow field optimization, enhanced PDC bit cleaning, coolling capacity,more optimum bottom hle flow pattern and anti- balling.soft to medium formation with lower compressive strength and good drillalility,such as marl shale lignite,sandstone, anhydrite tuff.etc Features 1. Tungsten Carbide Matric PDC Possesse high weqar resistance and impact resisitance. 2.Parabolic Crown profile and maximizes junk slot area can clean bit better, and prolong the bit working life. 3.Applying hydraulics balance design,5 renewal nozzles and reasonable nozzles locking angle can gain ideal fluid field in well bottom, fully clean and cool cutter, and prolong the cutter working life. 4. Non- symmetry blade arragement enhances drilling well balance. 5. Optimizaiton for cutter shape, slant angle, cutter numbers prolong the cutter working lift in combination withe high quality PDC cutter, and improve ROP and drilling efficiency. 6.It can be used on rotary or down hole motor. 7.High HIS is recommended. Product Advantages: 1. PDC cutters for high speed drilling; 2. All cutters are premium grade for extended bit life and durability; 3. Cutter layout is force balanced to drill a precise round hole and reduce bit whirl; 4. Large junk slots and flushing ports; 5. Advanced geometric design for faster penetration; 6. Gauge pads have tungsten carbide inserts for maximum wear resistance.
1.Cutter Structure The durability of premiun Tungsten carbide inserts is improved with new formulas and new techniques 2.Gauge Structure Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone, tungsten carbide inders and hardfacing on the shirttail increases gauge holding capacity and bearing life. 3.Bearing Structure High Precision jourmal bearing with two thrust faces. Balls lock the cone. hardfaced head bearing surface. cone bearing inlaid with friction-reduceing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved,and suitable for high rotary speed. 4.Seal and Lubracation Advance metal face seal lowers seal frictional force and overall seal torque and improves seal life. the pressure compensator syste, and advanced grease can greatly increas the lubracating relaibility. 5.Six-Point Position stabilzation Structure The bit leg is designed with specific interated stability structure, which provides near six-point contact with borehole wall for the bie. this new feature gives the bit unequaled stability which greatly reduces bit vibration protects the cutting structure from damageding blows and keeps good borehole quality, the thickened nozzle wall can protecy hydraulic system from wear and fluid erosion. 6. Product Application It is suitable for downhole motor and high speed applications, and is the ideal selection for drilling directional and horizontal wells.
Product description 1. PDC Matrix Body bit Type and feature PDC bit can be customized for oil well,water well, mining, explorer well drilling. Suitable formation Various of hardness rocks or mud except the hardest hardness or ununiform rocks like cobble. Main type Bit Diameters: 5 7/8",6",6 1/2",8 1/2",9 1/2",9 5/8",9 7/8",12 1/4",etc.Body type: Matrix or Steel Cutter Sizes:5/16"(8mm),1/2"(13mm),5/8"(16mm),3/4"(19mm),etc. Blades:2~9 Wings. 2. PDC Matrix Body Core Bit Type and feature PDC core bit can be customized for oil well,water well, mining, explorer well drilling. Suitable formation Various of hardness rocks or mud except the hardest hardness or ununiform rocks like cobble. Main type 75/54mm,94/74mm,113/89mm,113/109mm,153/129mm,215/105mm,etc. 3. PDC Steel Body Bit Type and feature PDC bit can be customized for oil well,water well, mining, explorer well drilling. Suitable formation Various of hardness rocks or mud except the hardest hardness or ununiform rocks like cobble. Main type Bit Diameters: 5 7/8",6",6 1/2",8 1/2",9 1/2",9 5/8",9 7/8",12 1/4", etc. Body Type: Matrix or Steel Cutter Sizes:5/16"(8mm),1/2"(13mm),5/8"(16mm),3/4"(19mm),etc. Blades:2~9 Wings 4.PDC Drill Bit Body & Cutters Welding PDC body(matrix) Customized. Wings: 2~9. Main Diamters:65mm,75mm,94mm,113mm,133mm,152mm,215.9mm,311.1mm etc. 2.PDC body(steel) Customized. Wings: 2~9. Main Diamters:65mm,75mm,94mm,113mm,133mm,152mm,215.9mm,311.1mm etc. Core bit body(matrix or steel) Main Type:75/54,94/74,113/89,113/109,153/129mm,110/215.9mm, etc. 4.PDC cutter and Welding OEM PDC Cutters Type : 5/16"(8mm), 1/2"(13mm), 5/8"(16mm), 3/4"(19mm). Introduction about product 1. PDC drill bit is super hard material combined with diamond and hard alloy under high temperature. It not only has the advantages of hard and durable from diamond, but also has the advantages of high impact resistance and big blade from hard alloy. It greatly improves the drilling efficiency and is the ideal drill bit for the drill operation of medium & hard as well as super hard rock. 2. Cutting structure is force balanced and bit blade is asymmetrically designed so that the load on bit is balanced that resulting better stability of the bit 3. Main cutter are high performance PDC cutters to insure service life of the bit while improving ROP. 4. Cutter exposure is optimized to insure the oil bit can achieve higher ROP is soft to medium formations 5. Shock absorbers are designed to make the bit capable of drilling through formations with hard strigers 6. Hydraulic system of the bit is optimized using dynamic flow pattern simulation technology to enhance cleaning and cooling effects of the bit to effectively prevent bit from balling
Brief description The RS-UV3C series UV laser marking machine is catering to the demand for marking and surface treatment of various glass, TFT, LCD screen, plasma screen, textile, thin ceramic, single-crystal silicon wafer, IC crystal, sapphire, polymer film, and other materials. The machine has stable performance, small size, low power consumption, high positioning accuracy, high operating efficiency, and modular design for easy installation and maintenance. Advantage: High beam quality, very small light spot, capable of ultra-fine marking The heat-affected area is very small, there will be no thermal effects, the material is not deformed or burnt, the marking effect is fine and repeatable, and the high-precision and high-precision light spot guarantees the marking result. The marking process is non-contact and the marking effect is permanent. Optional two-dimensional automatic worktable to achieve continuous multi-station marking or large-format marking, which can be coordinated with the production line, automatically loading and unloading, and automatic feeding and discharging. The flexible and convenient operating system, humanized operation process, the special control software can realize automatic arrangement and modification of seat symbols, graphic images, bar codes, two-dimensional codes, serial numbers, etc .; support PLT, PCX, DXF, BMP, JPG and other File formats, can use TTF font directly, CCD automatically recognizes and tracks. The marking lines are very thin, which is suitable for occasions with high marking requirements. It is mainly used for fine marking on the surface of LCD screens, lenses, ICs, and other products. Typical application Marking for 3C industry Industrial micromachining LED scribbling Laser rapid prototyping Silicon wafer processing Electronic Components Engraving PCB drilling or cutting FPC cutting Film etch Glass marking Wafer saw
LAKE offers crown impregnated height segments of 9mm, 12mm, 15mm, 16mm, 18mm, 20mm, and 25mm Diamond Core Drill Bits. Roschen also can supply different kinds of diamond core bits in different size, which are used in shale, sandstone, limestone, marble, dolomite, schist, granite, quartz, ironstone, chert, abrasive rock etc. Which including impregnated diamond core bit, surface-set diamond bit, reaming shells, casing bit, casing shoe bit, core lifter, core lifter case, core barrel assembly, inner tube head assembly, over shot, hoist plugs, drill rod, casing pipe etc. Advantages: Surface-Set diamond bits are primarily recommended for use in drilling relatively soft, abrasive, unconsolidated formations that are not effectively drilled by impregnated diamond bits. They are also recommended for use in drilling harder formations where the available rotational speeds and bit loads are insufficient to use impregnated diamond bits due to drilling equipment limitations. Notice: To select the right bit: 1) Please assess the speed and power of your drill for the size and depths of the holes 2) Please assess ground conditions (such as Stone / Granite / Concrete ) and down-hole conditions. Size: 1) LAKE have all standard size of Diamond Core Drill Bits (Surface-Set) . 3) Different customers have different requests, we can make customize Diamond Core Drill Bits. Crown Height: LAKE offers crown impregnated depths of 9mm, 12mm, and 16mm Diamond Core Drill Bits. The taller crown heights can improve bit life time, have better stability and performance, reduce vibrations. Specially about Waterways: Diamond impregnated bits are suit for various waterways. Diamond Core Drill Bits suit better flushing in various ground conditions and drilling systems. Threads: 1) Standard WL threads 2) As well as thread types required by clients are available.