It is a Drill Bit/CNC Router Bits/CNC Cutter/End Mill/Carving V-shaped Bit. Product Type: Flat bottom engraving bits. Shape: V-shape. Degree: 20 degree. Material: solid carbide. Application: It is mainly used for majority of plastics, Wood, Fibre glass, Carbon, PVC, Copper, Aluminum, and Acrylic etc.