Detailed Product Description Size: 3.175*40*45 angle/ 6*40*70.(90.)angle/ 9*40*35 angleSpecially engrave word in various kind of stone material,the size of character can be controlled in 3-8mm,the depth can reach 1-3.5mm,with a high efficiency and long life.Meterial: Body :Tungusten CarbideTip: PCD Diamond