MAKER MADE CNCs Solid Carbide V Groove Cutters are designed for engraving a variety of materials with ease. . The V-Groove Router Bit has a 60 V on one side and a 90 V on the other side for easy switching. The V-Groove milling drill bit is perfect for Maslow CNC and other CNC machines. - V-groove bits are a special bit named for their unique shape and are usually used for decorative cutting purposes. The sharp, tapered channel is ideal for labels, engravings, signs or similar types of projects. The V-grooves are available in different angles to suit the specific look of a particular cut.