Amana Tool 46180 Solid Carbide Mini Spiral Compression 1/8 D x 13/16 CH x 1/8 SHK x 2-1/2 Inch Long Router Bit Solid Carbide SPECIFICATIONS: (D) Diameter: 1/8 (B) Cutting Height: 13/16 (d) Shank: 1/8 Overall Length (L): 2-1/2 B1: 7/32 Type: Solid Carbide Flutes: 2