step drill

Model No.: 56mm-153mm

Features: 1.Diamond bits is applicable for broken hard rocks;
2.Over 24 years expeiences;
3.High quality best price;
4.Sell well

Model No.: 75mm; 94mm; 113mm etc.

Features: 1.PDC sintered bits applicable to drilling hard formation
2.Drilling fast
3.Good cost performance
4.Over 25 years experiences

Model No.: 75mm~450mm

Features: 1.The PDC bits suitable for drilling the large diameter hole;
2.High efficiency;
3.Over 25 years professional experiences.

Model No.: 75mm~133mm

Features: 1.PDC drill bits suitable for drilling large diameter hole under large torque
2.High pump and fast drilling speed
3.Sell well.

Model No.: 75mm; 94mm; 113mm etc.

Features: 1.PDC sintered bits applicable to drilling hard formation
2.Drilling fast
3.Good cost performance
4.Over 25 years experiences

Model No.: 42mm-450mm

Features: 1.Diamond drill bit is applicable for broken hard rocks
2.Over 25 years expeiences
3.High quality best price
4.Sell well

Model No.: 75mm; 94mm; 113mm etc.

Features: 1.PDC sintered bits applicable to drilling hard formation
2.Drilling fast
3.Good cost performance
4.Over 25 years experiences

Model No.: HA117

Features: 1.Specification:7 7/8'' 200.0mm
2.IADC:117
3.material:high manganese steel
4.WOB:0.35~0.90 KN/mm
5.sealing:rubber rings

Model No.: as your request

Features: 1. manufacturer of PDC bits
2. meet strictly of API standard
3.good feedbacks of the clients
4.20 years produce and design

Model No.: GD1605

Features: 1. manufacturer of PDC bits, diamond core bits
2. meet strictly of API standard
3.good feedbacks of the clients

Model No.: GD

Features: 1.used for oil filed, water well
2.various of model and dimension available
3.rubber seal or metal seal
4.certified by API

Model No.: GBSS

Features: Geological Surface Set Diamond Core Drilling Bits
good quality
low price long life