Breaker Steel,B22, B25, B28, B32,D25 ,it can withstand the toughest rock drilling demands Breaker Steel (1) Size: Hex.25mm, Hex.28mm, Hex. 32mm(2) Length: 400mm-700mm(3) Shank length: 83mm, 108mm, and 152mm(4) Head: chisel, point(5) Package: in wooden case or in bundles.(6) Productivity: 10000PCS / monthBased in China, Maxdrill Rock Tools Co Ltd is an ISO 9001:2008-certified manufacturer of high ...