Amana Tool 45722 Carbide Tipped V Groove 90 Deg x 1 Inch D x 3/4 CH x 1/4 SHK Router Bit Carbide Tipped SPECIFICATIONS: Diameter (D): 1 Angle (a): 90 Cutting Height (B): 5/8 Shank (d): 1/4 Overall Length (L): 1-7/8 B1: 1/2 Flutes: 2