Whiteside A220B Slotting Cutter Arbor 1/2"SH, 5/16"AD, 7/8"AL, 4"OAL features an extra long shank designed for extended reach, making it i for use with the 1-7/8" cutting diameter Slotting Cutters in the 6700 series. Crafted from solid steel, this arbor includes a B5 bearing that allows for a 1/2" depth of cut, with the option to change the depth by adding different size bearings. It has a 1/2" shank, 5/16" arbor diameter, 7/8" arbor length, and an overall length of 4", compatible with 1/2" collets. This tool is for precise slotting tasks, ing versatility with depth adjustments using various bearings such as B20, B25, B26, and B27 to suit different cutting needs. Model Number: A220B