V-shaped carbide flat bottom engraving bits use a CNC router machine and woodworking router machine, it is a long-lasting bit with high-quality carbide high precision, and an easy cutting experience. Advantage: high precision tool grinding/engraving High-capacity chip removal, high efficiency, and good quality products high-quality tools for 2D engraving, 3D engraving brand new and unused Size: 3.175 * 45degree * 0.1. tungsten Carbide CNC Router Bits  Carving Tools  V Shape Engraving Bit  Flat Bottom CNC Router Tools  CNC bit Packages Include: 1 x High Precision Flat Bottom CNC Router Tools Cutting Bits Carving Tools V Shape Engraving Bit