3/16" cutting diameter, 3 flutes, single end, square end, TiN coated.
Ground from solid carbide. This tool cuts 3/16" diameter, runs a 3/4" shank, has 3/4" of flute and measures 2-1/2" overall.
The square end cuts a flat floor with a sharp corner — slots, pockets, shoulders and side milling.
The TiN coating adds surface hardness and lubricity over uncoated carbide or HSS in general-purpose work.
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More help: Milling TechTips · Troubleshooting · Carbide vs. HSS Guide