Use: masonary material: 42crmo model: all sizes, customize types: five kinds of chisel suitable breaker: soosan, daemo, taixing, toyo, toku, kwang lin, n.P.K, krupp, stanely, montabert, okada, doosan, jcb, case, hamma, teisaku, furukawa, rammer, general breaker, comet, atlas and so on. Use: masonary material: 42crmo model: all sizes, customize types: five kinds of chisel suitable breaker: soosan, daemo, taixing, toyo, toku, kwang lin, n.P.K, krupp, stanely, montabert, okada, doosan, jcb, case, hamma, teisaku, furukawa, rammer, general breaker, comet, atlas and so on.