• Model NO.：6 7 11 12 degree
• Processing Type：Forging
• Mining Object：Coal Machinery
• Condition：New
• Export Markets：Global
• Transport Package：Wooden Box
• Specification：CE, SGS, ISO9001
• Trademark：Prodrill
• Origin：China
• HS Code：82071990
• Production Capacity：10000PCS

Product Name:Tungsten carbides tapered drill bitTypesRock cross drill bit, Tapered cross bits, Tapered button bits/ 34mm button drill bitApplication::Use in granite and marble quarry, gold mine, railway, tunnel, etc. for drillingFeature:Tapered drill bits connect tapered drill steel of rock drill for drilling holesMaterial:High quality carbide and high quality steelMOQ:5pcsWe can design and manufacture according to your requirement of diameter, number air holes and carbide button shape.Types of drill bitsDiameter          (mm)Taper Angle (Degree)Length       (mm)Tapered chisel bits20/22/28/30/32/34/36/38/404 degree/ 6 degree/ 7 degree/ 11 degree/ 12 degree50/55/60/71/80Tapered cross bits24/26/28/30/32/33/34/35/36/3/38/40/42/48/50/5550/55/60/71/80Tapered button bits28/29/30/32/33/34/35/36/37/38/40/41/42/4550/55/60/71/80

Description:
Comparing with tapered chisel bits and tapered cross bits, button bits has higher technology, much longer primary drilling time and higher drilling efficiency, so that the button bit is popular among the users.
Made with high quality of raw material through special heat treatment ,especially, tungsten carbide of tapered button bits are from Boart long year,widely applied in Hand Hold ( short-hole) drilling system for dimensional stone quarrying. At now, we are exporting the huge qty of Q7- 33- 7 22-80 , Q9 -45 -12 22- 71 for Indian quarry and Norway, Finland quarry.