It is a Carbide Tool/Engraving Bits/2-Flute V Bits/CNC Cutter/End Mill/CNC Router Bits. Product Type: 2 flutes straight grooves cone metal engraving bit. Material: solid carbide. Cutting Angle: 60 degree. mainly used for the engraving and marking of stainless steel, aluminum, brass, medium density fiberboard, wood panels, plastic and many other soft gummy materials.