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B25 Tapered Drill Set Bits and Rod for Quarry Rock
Product nameTaper drill rods H25MaterialHigh quality carbide and 55SiMnMo steelProcessForgingUsageRock drilling, coal mining and geological drillingTaper degree7, 11, 12 degreeLength800-6000mmWeight4.0kg/mSpecificationH25*108mm, H25*159mmDelivery1-5 days for sample, batch products depend on order qu
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Chtools Thread Shank HSS Magnetic Drill Bit
TypeSize(mm)TypeSize(Inch)DNHL-4012012*50DNHL-4024024*50DNHL-4013013*50DNHL-4025025*50DNHL-4014014*50DNHL-4026026*50DNHL-4015015*50DNHL-4027027*50DNHL-4016016*50DNHL-4028028*50DNHL-4017017*50DNHL-4029029*50DNHL-4018018*50DNHL-4030030*50DNHL-4019019*50DNHL-4031031*50DNHL-4020020*50DNHL-4032032*50DNHL
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Thread Shank HSS Mini Annular Cutter
TypeTypeSizeDMFU-100808*6.35DMFU-1010010*6.35DMFU-1012012*6.35DMFUDMFU-1014014*6.35DMFU-1016016*6.35DMFU-1018018*6.35DMFU-1020020*6.35
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36mm 7 Degree Taper Button Drill Bit for Drilling Quarry
Rock GradeHardness LevelTypical RockF gradeApplicable button bitIThe hardestthe hardest and compact quartz, basalt and other special hard rocksf=20The best qualityIIstrong hardvery hard granite&quartz porphyry&siliceous schist, hard quartz, the hardest sandstone &limenstone rockf=15The b
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32mm First Class Taper Button Drill Bit for Hard Stone
Hardness LevelTypical Rockf gradePhotoIThe hardestthe hardest and compact quartz, basalt and other special hard rocksf=20IIstrong hardvery hard granite&quartz porphyry&siliceous schist, hard quartz, the hardest sandstone &limenstone rockf=15IIIvery hardcompact granite, ver hard sandstone
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34mm Best Carbide Taper Button Bore Bit for Hard Quarry
Rock GradeHardness LevelTypical RockF gradeApplicable button bitIThe hardestthe hardest and compact quartz, basalt and other special hard rocksf=20The best qualityIIstrong hardvery hard granite&quartz porphyry&siliceous schist, hard quartz, the hardest sandstone &limenstone rockf=15The b
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Chinese Factory HSS Annular Cutter Used to Magnetic Drill
Basic Info. Model NO. DNHC
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High Speed Steel Magnetic Drill with 25mm of Cut