... or produce according to your request best service T45 rock drilling bitsThread button bits1. Rope thread:R25 ... R32, R33, R38, R35 T thread: T38, T45, T51, ST58, T60 GT 60.2. Main button ... R32-64, R32-76, T38-64MM, T38-76MM, T38-89, T38-102MM, T45-76MM, T45-89MM, T45-102MM, T-89MM, ... Spherical, ballistic and Conical. (Threaded R32, R38, T38, T45, T51, bit diameter: 45mm-127mm);Tapered Button Bit1. Taper: ...