rock boring tools thread diamond core drill bits for hard rock

Shandong Hengwang Heavy Industry co.,ltd is  the professional manufacturer of Pile driver,Drilling

 rig,Road construction machine . With more than 300 workers and 25 Senior engineers,high quality 

produts and best after sales service can both be guaranteed. main clients are around Southeast

 Asia,Mid East and South America. Welcome visit our factory and sent inquiry to us.

HENGWANG Manufacture H22 Drill Bit for B22 Drill Pipe

1.With carbide buttons hot pressed on bits bodies, Tapered Button Bits have a very good drilling performance and long life time. Different diameters and taper degrees are available to suit different applications in mining, quarrying etc. We can supply long skirt and short skirt Tapered Button Bits.

2.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.

3.Tapered equipment affords drillers the ability to change drilling bits whilst still using the same

   drilling rod. Drillers choose tapered button bits for faster drilling penetration rate. Different taper

   sizes have different characteristics when it comes to the “knock-off” index – the smaller angle will

   prevent the bit from spinning.

4 • Suitable for small hole range

   • Widely used in Dimensional Stone Quarrying Industry
   • Widely used in Underground Mining Industry

Button Bit type :

A. Taper button bit

33mm, 38mm, 44mm.

B. Thread Button Bit

R25--38mm, R25--41mm, R28--38mm, R28--41mm

R32; R32--45mm, R32--76mm, R32--89mm, R32--102mm

T38; T38--64mm, T38--76mm, T38--89mm, T38mm--102mm

T45; T45--89mm, T45--102mm

T51; T51--89mm, T51--115mm,  T51--127mm