od81mm to od146mm rc hammer

{"cid":"91182652","title":"Reverse Circulation RC Hammer for Exploration Drilling and Grade Control with OD81mm to OD146mm and 84mm to 152mm Bit Range","imgUrl":"https:\/\/img.ismap.com\/nimg\/f7\/ef\/9c0c4a0b3772e3b8feb374f92f4f-200x200-1.jpg","attrs":{"Price":"$1,500","Brand Name":"SOLLROC","Minimum Order Quantity":"1","Place of Origin":"Hunan, China","Weight":"84 KG","Material":"Carbon Steel","Processing Type":"Forging","Size":"OD81mm to OD146mm","Connection thread":"Remet and Metzke thread","Bit range":"84mm(3.3inch)-152mm(6inch)","Collaring bit dia.":"165mm(6.5inch)-210mm(8.3inch)","Face selection":"Drop center, hard formation, concave","External Diameter":"81mm to 146mm","Length":"1069mm to 1362mm","Working Pressure":"1.0-3.5Mpa","Hole Range":"84mm to 190mm","Button configuration":"Customizable","Bit head shape":"Various selection","Shank design":"Interchangeable"}}