1.Material:40cr or 42crmo alloy steel 2.Hardness:head:hrc53-56;tail:48-52j; 3.Techonology:raw material machined-heat treatment-polish-painting-package 4.Weight:from 3kgs-300kgs 5.Be worked on atlas copco, arrowhead, berco krupp, rammer, soosan, furukawa, krupp, takeuchi, montabert, etc. Wooden case:base on the chisels dimension.
