Water Well Drill Bits

1.Cutting structure this type tci tricone bits: The durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit. 2.Gauge structure this type tci tricone bits: Multiple gauge protection with gauge trimmers on the heel of cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life. 3.Bearing structure of this type tci tricone bits: High precision bearing with two thrust faces. Ball lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved. 4.Seal and lubrication of this type tci tricone bits: Premium o-ring, optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability . 5.Product application this type tci tricone bits: It can receive high wob in the conventional drilling. It is suitable for various formations by matching cutting structure with different tooth shape, tooth density and tooth exposure height.

1)all products are under iso certificate & quality control. (2)they have high efficiency and strong wear resistance for drilling. (3)applicable rock formation: f¡ü 8 (4)pdc bit uses pdc as main cutting components, with the excellent wear-ability and impact toughness of the pdc. It has a useful life, high-efficiency, and good performance cost ratio. Product description: Pdc non-core bit mainly used for drilling soft and medium formation, and used for the purpose of geology, coalfield, metallurgy, building, mining, projectsurvey, rail, bridges, housing. Guilin star diamond supply all kinds of pdc non-coring bits with the best price and good quality. We can also design pdc bits according to customers' requirements, such as different geological condition, special strata and so on. Dear friends: if any additional information needed, please feel free to contact us at: Mob:+8613737702003 Tel: +86-773-5822066 Fax: +86-773-5822066 Sky: xiaoshitou0115

Hole Openers can be quoted with new/unused surplus or used Steel Tooth or TCI Cutters Hole Openers. At some point it may be necessary to increase the size of a pre-drilled hole to a larger diameter or to drill large diameter holes. Hole opener bits are designed specifically for this purpose. Bits are custom manufactured in a wide range of styles to meet field requirements. A custom hole opener is an effective way of enlarging holes, hence the name "Hole Opener". The Hole Opener Advantage Straighter Holes - By drilling a smaller hole with a "pilot" bit, then attaching that said bit onto the bottom of the the hole opener. The hole opener will follow the path of the hole drilled by the smaller bit. Larger Holes with Smaller Rigs - By drilling a hole in stages, larger holes can be drilled with smaller rigs. A smaller hole requires less power. Replacing Cutters and Cutting Cost - On most Hole Opener designs, the cutters can be easily replaced. The cost to replace a cutter is a fraction of the cost to replace a large tricone rock bit. Cost of Large Rock Bits - Larger diameter rock bits not only cost a lot, they can be difficult to find. A more economic solution is to use a hole opener that uses smaller tricone rock bit segments.. Flexability - Hole Openers can be fabricated in just about any size, and can be configured to drill through any formation. Operational Considerations Drilling Weight - The choice of drilling weight is determined based on the recommendations of the bit manufacturer and the number of cutters on the hole opener. Number of Cutters - The number of cutters placed on a hole opener is governed by the following facts: 1.Maximum number which will fit around the perimeter. 2.The greater the number of cutters, the less the weight, which therefore reduces the penetration rate. 3.In softer formations, less weight is needed to penetrate. 4.The greater the number of cutters, the smoother the tool will run. 5.The greater the number of cutters, the greater the cost. 6.The greater the number of cutters, the longer the cutters will last Rotary Speed - Maximum speed is determined by the manufacturer's recommendation and the calculation to account for the linear distance the cutter is moving per revolution. Hole Cleaning - A frequently over looked point of hole opener operation is hole cleaning. The volume of cuttings to remove from a hole increase by a squared factor with an increase in hole diameter.

PDC bits used for rock drilling,coal mine drilling and water well drilling . Kinds of PDC drill bits : 1.PDC no-core bits; 2.PDC core bits; 3.PDC anchor bits; 4.PDC drag bits; 5.sintered drill bits;