High Speed Steel TMX Interchangeable Pilot Counterbore with Taper Shank.HSS TMX Interchangeable Pilot Counterbore, Taper Shank, 5 Flute, 2-1/4″ cutting diameter x 5 MT shank x 7-3/8″ shank length x 9-7/8″ OAL with 1/2″ pilot hole diameter for pilots 9/16″ to 2-3/16″.
For counterboring and spotfacing – interchangeable pilots provide the advantage of one counterbore size can be used for a number of pilot hole diameters
