The products cross bits are mainly used in coal mining,metal mining,stoning and tube engineering.have approved ISO9001:2000.

Our products cross bits have approved ISO9001:2000 Quality System and inspection of National Rock Drilling Tools Inspection Center. All the products have assured by China People Insurance Company.

1)Tapered connection:6°7°11°12°

2)Thread connection:R22.R25.R28.R32.R38.T45.T51.

3)Bit diameter:28-127mm.

4)Packaging:wooden or plastic box packaging or as per your requires.