1.00 mm Cutter Diameter x .10 mm Radius x 1.50 mm Length of Cut x 16.00 mm Reach Carbide Corner Radius End Mill For Exotic High Temp Alloys, 3 Flutes, AlTiN Nano Coated. Achieve outstanding performance in difficult-to-machine steels, stainless steels, and tool steels with Harvey Tool's Variable Helix End Mills for High Temp Alloys, featuring a long reach design for deep cavities and a reduced neck diameter to avoid heeling.