. The 3200 General Purpose end mill is stocked uncoated and with FC-20, TiAlN, TiCN, and TiN coatings.4-Flute - 30° Helix - 3200 GP End Mills, TIALN, RH Spiral, Ball, Stub, 7/32 It is offered in a variety of configurations and is available with single-end and double-end designs.