Fly cutters are used primarily on a milling machine for machining large, flat surface areas. The fly cutter is a single-point cutting tool similar to a lathe tool mounted in a special holder. The cutter can be adjusted to cut up to a 2.00" (51 mm) diameter and is easily capable of taking a .010" (.25 mm) deep cut in aluminum at this diameter.
The Sherline fly cutter comes complete with the holder, drawbolt, thrust washer and a left-hand carbide cutting tool. It is a worthwhile addition to any shop.