Combining mirror finished Fluting which insures the best of cutting edges possible in a solid carbide tool, along with a strong, straight-fluted design, These aggressive o flute tools will give longer tool life, #43532, diameter (D): 3/16, cutting Height (B): 5/8, shank (D): 1/4, overall length (L): 2, flutes: 1, 43532 Solid Carbide single o flute straight grind aluminum Cutting 3/16 dia x 5/8 x 1/4 inch Shank