2pcs 3.175mm Diamond pen point engraving tools engraver cnc milling cutter circuit board metal stone aluminum carving tools bits

3.175mm Diamond tip point engraving tools engraver cnc milling cutter steel metal stone Carving tools

Application: Engraving Stainless steel,granite, stone ,brass, aluminum, Ceramic 

Size:Diameter 3/3.175mm,Tip:60/90 degree,Length 50mm.(can be customized ) 

Material:diamond tip and steel body. 

QTY:2PCS