Main application：

1，For rock drilling with core barrel/drilling auger, drilling bucket.

2，B47K17.5H,B47K19H,B47K22H,C31,C31HD,TS5,TS7,C21HD,C10,C30,B43H,B85/2 etc.

Features：

1，Material: 42CrMo, YG11C.

2，Tungsten Carbide bit diameter 12-38mm.

3，Improving drilling efficiency.

4，Long service life and high reliability.

Production process：

Parameters：

Packing and delivery：