The glue joint cut by this bit is strong and self-aligning. One setup produces both halves of the joint. Adjust the bit so the center of its profile aligns with the stock center. Cut one part face down, the mate face up, #55388, diameter (D): 1-7/8, cutting Height (B): 1-3/32, Shank (D): 1/2, overall length (L): 2-5/8, flutes: 2, D1: 1-7/16, 55388 carbide Tipped glue joint 1-3/32 dia x 1/2 x 1/2 inch Shank