Tapered cross bit can be used under any rock drilling condition because of it's comprehensive adaptability. Compared with taper chisel bits, taper cross bits have a better drilling performance because carbide tips on cross bits doubled, which means carbides shape are cross type on drill bits. Taper cross bit is mainly used for hard or very hard rock formation. There are various type suitable for afferent work site, Diameter of bits from 32mm to 42mm with 4 ,6,7,11,12 degree, tapered drill steel with Hex.22mm and Hex.25mm, The deliver capacity are very strong and can completely meet customers requirements on delivery design. Specification 1)Bit diameter: 32mm-42mm. 2)Benefits: Increased penetration , longer services, lower drilling costs, Extensive selection of button, 3) Taper: Degree 4, 6, 7, 11, 12. 4) Material: 40Cr, 42CrMo. Application: The products cross bits are mainly used in coal mining,metal mining,stoning and tube engineering.