Use a Two-Flute bit where fine finish is paramount. Two flutes balance the bit, eliminating vibration that degrades the cut finish. Two cuts per revolution yield a smooth surface, but feed rate is slightly reduced, #45251-01, diameter (D): 3/4, cutting Height (B): 1, shank (D): 1/4, overall length (L): 2-5/8, flutes: 2, 45251-01 carbide Tipped straight plunge high production 3/4 dia x 1 inch x 1/4 shank