Thinbit by Kaiser Tool Company has expanded its selection of internal Groove N’ Turn toolholders. The holders are available in 1/2", 5/8", 3/4" and 1" diameters. They have a 1.250" minimum bore and hold inserts with cutting depths to 0.500".

These toolholders can be used on conventional, Swiss and CNC machines for ID threading inserts and grooving inserts in sizes from 0.004" to 0.155". Inserts are available in three grades of material: D2 for steels, D5 for nonferrous and HSS. TiN, TiCN, TiAlN are available as well as a selection of radius and special configurations.