Button bits for rock drilling 1.Various button bits size. 2.Widely used for mining. 3.On time delivery. 4.Good quality.

Tapered drill bits

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.

Tapered button drill bit specifications :Type:Tapered  button bitsShank Hex.Size: 19mm,22mm,25mmDiameter: 30-42mm.Taper degree: 4°6°7°11°12°Package:in wooden case or in carton.Productivity: 10000pcs/monthTapered button drill bits are widely used for drilling hard or very hard work. In addition to tappered button drill bits,we provide tapered chisel drill bits, as well as taper drill rods, etc.  

Tapered Drill Bits