Industrial Quality Signmaking, Lettering, V Groove Miter Fold & Mini Router Bits are made by Amana Tool, the leading manufacturers of high-quality wood-cutting tools. Use Amana Tool 56125 Solid Carbide Point Cutting Roundover 1/8 R x 1/4 D x 5/16 CH x 1/4 SHK x 2 Inch Long Router Bit for lettering, engraving, signmaking, fluting and decorative trimming such as beadboards. SPECIFICATIONS: Diameter (D): 1/4; Radius (R): 1/8; Cutting Height (B): 5/16; Shank (d): 1/4; Overall Length (L): 2; B1: 1/8; Type: Solid Carbide; Flutes: 2.