Steel tooth bits series:
Soft formation tooth bits:
The soft formations tooth bits are used to drill low compressive strength, soft formations. Long projection
tooth lengths are used on high offset cones to provide the greatest penetrations rates possible. Wear
resistance hard facing is used to control tooth wear. On the softest bit types this hard facing completely
covers the bit teeth.
Medium hard formations tooth bits:
The medium hard formation tooth bits are used to drill high compressive strength, medium hard formations.
Shoot projection teeth with reduced crest length are used in this series of bit designs.
Durable hard facing is applied to reduce tooth wear.
Drill Bits
Place of Origin.....................Germany Model Number........................TU1245 Weight ....................................3.5 Grade......................................HMS Material..................................Carbon Steel,1308 PDC cutters Shape.....................................ASH
HSS M35 5% Cobalt Centre Drill Bits
HSS M35 5% Cobalt Step Drill Bits Set, Amber FINISHED, 3PCS:4-12, 4-20-4-32MM
170PCS HSS TWIST DRILL BITS SET, 118 DEGREE, DIN338, BLACK FINISHED IN METAL BOX. 1.0-8.0MMX0.5, EACH 10PCS 8.5-10.0MMX0.5, EACH 5PCS.
HSS M35 Cobalt 5% Twist Drill Bits SET, 1.0-10.0X0.5MM, 135 SPLIT POINT, DIN338 STANDARD, Amber Finishing,rose Plastic Box Packing
Steel tooth bits series: Soft formation tooth bits: The soft formations tooth bits are used to drill low compressive strength, soft formations. Long projection tooth lengths are used on high offset cones to provide the greatest penetrations rates possible. Wear resistance hard facing is used to control tooth wear. On the softest bit types this hard facing completely covers the bit teeth. Medium hard formations tooth bits: The medium hard formation tooth bits are used to drill high compressive strength, medium hard formations. Shoot projection teeth with reduced crest length are used in this series of bit designs. Durable hard facing is applied to reduce tooth wear.
Our Drill bits are come from CS brand and Kingdream Brand, which are the best famous brand in China and top 5 in the word, our drill bits has solded to more than 30 countries including USA and Russia with superior quality. - Product Specifications 1) Condition: 100% new 2) Manufacturer brand name: CS or Kingdream brand 3) The exact bit size: 8 1/2" = 215.9mm 4) IADC code: 127 Steel tooth Tricone Bit 5) Seal type: Elastomer Sealed Bearing 6) Bearing type: Journal Sealed bearing bit with gauge protection 7) Nozzle quantity and nozzle size:3 pcs 8) Connection joint Pin size: 4 1/2 API Reg pin 3-Available sizes: 60mm,65mm,76mm,93mm,95mm,98mm(3 7/8),101.6mm,114mm,118mm,120mm,127mm(5) 130.1mm(5 1/8),133.3mm(5 1/4),139.7mm(5 1/2),142.8mm(5 5/8),149.2mm(5 7/8) 152.4mm(6),155.5mm(6 1/8),158.7mm(6 1/4),161.9mm(6 3/8),165.1mm(6 1/2) 190.5mm(7 1/2),193.6mm(7 5/8),200.0mm(7 7/8) 212.7mm(8 3/8),215.9mm(8 1/2),222.2mm8 3/4) 241.3(9 1/2),244.4(9 5/8),250.8(9 7/8) 269.8(10 5/8),295.3(11 5/8) 311.1(12 1/4),346.0 (13 5/8),349.2(13 3/4) 374.6(14 3/4) 381(15),393.7(15 1/2),406.4(16) 444.5(17 1/2),508(20),558(22),609.6(24) 660.4(26) 4-Available models: Steel tooth (IADC) : 111, 121,131 117,124,126,127,136,137 211,311 216,217, 227 TCI (IADC): 415,435, 417,437 515,525,535,545, 517,527,537,547 615,625,635,,617,627,637,737 512,522,532,612,622,632,732
Power Screw Bits
