Amana - A45610 3/16" Cut Diameter Zero Point V-Groove Router BitAmana A45610 3 16" Cut Diameter Zero Point V Groove Router Bit Amana Solid Carbide Zero Point V Grooving Bit. These bits have a "zero point" and are designed for beveling or creating a 90 V groove. Specifications Cut Diameter: 3 16" Shank: 1 4" Cut Length: 5 8" Overall Length: 2 1 4" Angle: 90 Deg Tip Dia: 0. 005" Flute Type: V Bit No. of Flutes: 2 A ZrN coating provides: A harder and tougher cutting edge allows for a prolonged cutting edge life and