Amana Tool 49410 Carbide Tipped Chamfer 22-1/2 Degree x 1-1/4 D x 15/16 CH x 1/2 Inch SHK w/Lower Ball Bearing Router Bit Carbide Tipped 1/2 Inch Shank SPECIFICATIONS: Diameter (D): 1/4 Angle (a): 7 Cutting Height (B): 3/8 Shank (d): 1/4 Overall Length (L): 1-7/8 Flutes: 2 D1: 3/16