Whiteside 4-Wing Slotting Cutter 1/4 in. is a precision tool designed for creating slots in panels, splines, and t-moldings, as well as for cutting tongue and groove joints. This 4-wing carbide-tipped slotting cutter features a diameter of 1-7/8 inches and a 5/16 inch bore, making it i for a variety of woodworking applications. The cutter works with matching arbors (sold separately) that have a shaft length of 7/8 inch and include a B5 bearing, allowing for a 1/2 inch depth of cut. For different cutting depths, users can switch to other bearings available separately, such as B20, B25, B26, and B27, which provide depths ranging from 1/4 inch to 5/8 inch. Manufactured by Whiteside Machine Company in Claremont, North Carolina, this cutter combines durability and precision to meet professional woodworking needs. Model Number: 6710B