Amana Tool RC-2248 Mini Insert Spoilboard Surfacing, Rabbeting, Flycutter, Slab Leveler & Surface Planer 1-1/2 D x 12mm (15/32) CH x 1/4 Inch SHK Router Bit 1/4 Inch Shank SPECIFICATIONS: (D) Diameter: 1-1/2 (B) Cutting Height: 12mm (15/32) (d) Shank: 1/4 Overall Length (L): 1-11/16 Max RPM: 24,000 L1: 1-1/16 Replacement Knives: HMA-12 (2) (A) Cut Depth: 1/4