best drill bit for rock

Hard Rock 7 Degree Diamond Core Drill Bits For Rock High Toughness Carbide Teeth Thread button drill bits are made with high quality of best quality a...

T38 89mm Thread Rock Drill Button Bits Drilling Bits for Rock Drilling and Mining Material Description: Thread button bits made with high quality of b...

Exploration Core Drilling HQ Impregnated Diamond Core Drill Bits For Rock High Performance HQ Impregnated diamond core drill Bit for exploration core ...

Domed Reaming Drill Bit T38 / T45 Tungsten Carbide Drill Bits Reaming bits is used for making large cut holes in drifting and tunneling. A smaller hol...

PDC Drill Bits PDC rock bit /PDC oil drill 005 Specifications PDC drill bit 1.No:005 2.covers all IADC codes 3.CNPC is our customer 4.good after-sales...

API Rock Bit 17-1/2 Inch 7 Blades Diamond Drill Bit Of Rock Drill Bit 1 . Descriptions: According to the International Association of Drilling Contrac...

T45 Drop Center Ballistic thread Button drill bit for rock drilling , 76mm 89mm 102mm Application The thread button drill bits are made by high qualit...

Button Bit 11 Degree Hex 12 Tapered Drill Bit For Rock Drilling Tools Feature Of The Taper Button Bit: Premium Designs And Steel And Premium Tungsten ...

T45 76mm Top Hammer Button Drill Bits for Rock Drilling and Blasting​ Thread Button bits are made by alloy steel bar of quality and tungsten carbides....

Low Air Pressure CIR110 DTH Bit Rock Drill Bits for Rock Drilling Description: CIR110 DTH Button Bits for Drilling Hole 1. High and low air pressure d...

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Product name: 203mm 8 Inch HM8 High Air Pressure DTH Drill Bits For Rock Horizontal Directional Drilling Product category: DTH drill tools Matched ham...

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12 1/4 Inch 5 Blades Diamond Tipped Drill Bit Tricone Drill Bit Rock Drill Bits 1. The crown of the drill bit has a long cast surface, which is suitab...

67kg Alloy Steel DTH Drill Bits For Rock Mining And Engineering CD85-280 Description 1. Long life span: the wear-resist of tungsten carbides is 10-20 ...