Description: This matched tongue and groove router bit set cuts a 1/4 inch thick tongue into stock up to 3/4 inch thick. The cutting depth: 1/2 inch; the shank diameter: 1/2 inch Tongue and groove router bit set is pre-shimmed and comes in a handsome wooden box Additional shims are included in case further adjustments are necessary Number of Bits: 2; Number of Flutes: 3 Bit Construction: Carbide Tipped Design: Tongue & Groove Specification: Tongue and Groove Assembly Shank Diameter: 1/2'' Cutter Diameter: 1-7/8" Cut Depth: 1/2" Cut Height (Kerf): 1/4" 3/4" Total Length: 3-1/16"/2-7/8" Package Includes: 1x Tongue Router Bit 1x Groove Router Bit