Whiteside Tongue & Groove Assembly Bit, 1/2 in. SH x 1-5/8 in. LD is a versatile router bit designed to create both tongue and groove joints with a single cutter by simply adjusting the height, eliminating the need to remove bearings. This carbide-tipped, two-wing bit works efficiently with materials ranging from 1/2" to 13/16" thick, making it i for a variety of woodworking projects. It comes equipped with two B5 bearings (5/16" ID x 7/8" OD) for smooth and precise operation. Manufactured by Whiteside Machine Company in Claremont, North Carolina, this bit reliable performance and durability. The specifications include a 1/2" shank size, 1-5/8" large diameter, and a tongue width of 9/32". Model Number: 3375