The CrownLoc broach of Caboloy company used the nicety that each other locks up to machine V chamfer, can ensure the tigidity that gets a hat is mixed repeat installation precision, make get coronal and drill pipe to become one whole. A broach can drill the hole that cuts certain limits (be like from 14 ～ 14.
99mm) , hard alloy broach has figure of two kinds of geometry. CNC Milling