Whiteside Slotting Cutter Arbor w/o Bearing 1/2 in. SH x 4 in. OAL is designed for use with any of Whiteside's 3-wing carbide tipped slotting cutters, making it i for running slots for panels, splines, and t-moldings, as well as cutting tongue and groove joints. This arbor is sold without the standard B5 bearing but includes two spacer washers and a lock nut for secure attachment. It features a shaft length of 7/8" and allows for adjustable cutting depths by adding different sized bearings, which are sold separately. The standard B5 bearing provides a 1/2" depth of cut, while other options like B20, B25, B26, and B27 bearings varying depths to suit your specific needs. Please note that cutters and arbors are sold separately. Manufactured by Whiteside Machine Company in Claremont, North Carolina, this arbor is built to precise specifications with a 1/2" shank size and 4" overall length. Model Number: A220