... a professional productions base of series of rock drilling tools, mining tools, DTH Drill tools. Construction tools and excavating coal pick ... rods in most lengths.A comprehensive range of button bits, cross bits and chisel bits with (6, 7, 11, 12 degree taper).Bit ... pressure hammers CIR65a, CIR90, CIR110, CIR150, CIR170 etc. DTH bits: 60mm-254mm bits with flat face, concave design fit for the atlas ...