Specifications

-OEM carbide drill bits for hardened steel
-all carbide bits with certificate ISO&API
-Quality products&ISO certificate bits

8 1/2", 12 1/4" carbide drill bits for hardened steel

 

high strength, high flexibility, high temperature,high wear resistance, high precision metal seal , locking roller ball, to adapt to high speed, the high toughness steel teeth, hours in the rotary cone bit ,impact, crushing and shearing the role of broken rock, adapt to the soft and medium hard of various stratas, reasonable price and supreme quality,

 

size and types available:

size: common sizes: 6. 6-1/2. 7-7/8, 9-7/8, 10-5/8, 12-1/4,

various:sizes also can be manufacted by the clients order

types: IADC code: 412,432,532 612, 632, 712, 732, 832, etc

Non-standard also can be made as your demand.