stone hammer head material:45#carbon steel size:2lb.3lb,4lb,6lb,8lb,10lb,12lb,14lb,16lb,20lb,22lb,24lb HRC:40-50 blackpaint Our factory specially produce stone hammer. there are german type stone hammer, american type, british type stone hammer.details as following:1.ItemGerman type stone hammer head2.materail45#carbon steel, forged3.HRCaround 50 degree4.Surface workpaint and polish 5. ...