Groove ‘N Turn toolholders are available in 3/4" and 1" square and are used for making undercuts and thread reliefs at a 30-degree/60-degree angle. The toolholders can be used on conventional, Swiss and CNC machines for grooving inserts in sizes ranging from 0.004" to 0.150". Inserts are available in three grades: D2 for steels, D5 for nonferrous and HSS. TiN, TiCN, TiAlN are available. A full selection of radius and special configurations are available.