1.PDC anchor drill bit 2.LD PDC anchor shank drill bit with best price,long life 3.PDC drill bits get ISO for coal mining PDC coal mining drill bit/PDC anchor shank drill bit/PDC bolt mesh drill bit/PDC anchor shank coal bitfrom Zhengzhou LD Diamond Products Co.,...

1.Coal auger/Mining bit 2.PDC anchor shank drill bit with best price,long life 3.mining bit size:27,28,42,43mm... Mining bitMining PDC anchor shank drill bit select top grade PDC cutter, the bit has stable performance and impact resistance, could be applied to rock formation...

1.PDC anchor drill bits 2.High abrasion resistance ,high impact resistance,high drilling efficiency 3.bit diameter:27,28,32,42 PDC anchor shank drill bits are mainly used for the coal seam, dam and roadway construction of bolt-mesh support. Their life are 10-30 times of tungsten...

1.PDC anchor bits for conglomerate,granite,limestone 2.High abrasion resistance ,high impact resistance,high drilling efficienc PDC anchor bits for conglomerate,granite,limestone  PDC anchor shank drill bits are mainly used for the coal seam, dam and roadway construction of...

1.PCD hex bits 2.High abrasion resistance ,high impact resistance,high drilling efficiency 3.bit diameter:27,28,32,42 PCD hex bits PDC anchor shank drill bits are mainly used for the coal seam, dam and roadway construction of bolt-mesh support. Their life are 10-30 times of...

1.PDC drag bits 2.PDC drag bit can do 3/4/5/6 Wings/blades 3.PDC drag bit drilling faster&good efficiency 4.Fast delivery PDC drag bitsPDC Drag bits also named blade bits, with PDC cutter inserts on the blades, they are applied to rock formation f≤6,like mudstone, shale,...

1.PDC drag bits 2.PDC drag bit can do 3/4/5/6 Wings/blades 3.PDC drag bit drilling faster&good efficiency 4.Fast delivery PDC drag bitsPDC Drag bits also named blade bits, with PDC cutter inserts on the blades, they are applied to rock formation f≤6,like mudstone, shale,...

1 PDC concave drill bit/PDC FULL FACE DRILL BIT 2 Standard size:56,65,75,94,113,133,153mm 3 High efficiency, long life   PDC concave drill bit/PDC FULL FACE DRILL BITSteel body PDC bits/PDC drill bits are applied to rock formation f below 18, like granite, limestone,...

1.Drag bit/PDC drill bit 2.Bit size:56-153mm(3,4,5,6 inch),3,4wing available 3.For soft to medium hard rock formations Drag bit/PDC drill bitZhengzhou LD Diamond Products CO.,LTD., a professional manufacturer of PDC bit. Our bit are widely used for water well, geothermal well,...

1.PDC drag bits 2.PDC drag bit can do 3/4/5/6 Wings/blades 3.PDC drag bit drilling faster&good efficiency 4.Fast delivery PDC drag bitsPDC Drag bits also named blade bits, with PDC cutter inserts on the blades, they are applied to rock formation f≤6,like mudstone, shale,...