Dia 7/16" - 4" (12mm-100mm) D.O.P 1",2",or 3" (30, 50, 75, or 100mm) weldon shank or ... good performance in chip removal and friction resistanceHandle for fast interface.Apply to Nitto, Alfra, BDS, Ruko, drilling rig and other ... , lathe, etc.We also have Pilot Pin and MT Holders High Performance High-Speed Steel Annular Cutter