Hejian Deris Petroleum Drilling Equipment Co., Ltd

1.Reliable bearing system 2.Fast drilling rate 3.Strong cutting structuredurability 4.Be used to drill soft to hard formation 5.Seal type:Metallic

1>Reliable bearing system 2>Strong cutting structure durability 3>Be used to drill low compressive strength , soft formation 4>Bearing sealed: meta

1.Reliable bearing system 2.Fast drilling rate 3.Strong cutting structure durability 4.Size: from any other regular size available from 1.8 (45

1.Advantage : high quality , on time delivery and large available quantity 2.Reasonable price , best service and on time delivery 3.Reliable bearing

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

1.Available IADC code of rock bits Milled tooth:116, 117, 126, 127, 136, 137, 216, 217 TCI-tungsten carbide insert:417, 437, 517, 527, 537, 547, 617

1.Strong cutting structure durability 2.Reliable bearing system 3.Fast drilling rate 4.Size: from any other regular size available from 1.8(45mm) t

1.Dia:from 3 1/2'' to 26'' 2.Type:Milled tooth & TCI 3.IADC:116, 517, 537, 617 4.oil drilling, water well drilling 5.Type:Center D

1.Dia:from 3 1/2'' to 26'' 2.Type:Milled tooth & TCI 3.IADC:116, 517, 537, 617 4.oil drilling, water well drilling