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. Originally developed specifically for professional signmakers in Europe, Amana Tool 45624 Carbide Tipped V Groove 60 Deg x 1/4 D x 31/64 CH x 1/4 Inch SHK Router Bit features a solid carbide, razor sharp cutting edge with an extra fine 60 point for lettering and detailing. Enables a cleaner, more intricate cut compared to a standard 'V' groover for this application. Excellent for: Acrylics, MDF, Plastics, Solid Woods. SPECIFICATIONS: Diameter (D): 1/4; Angle (a): 60; Cutting Height (B): 31/64; Shank (d): 1/4; Overall Length (L): 2; B1: 7/32; Flutes: 3.