1/2" cutting diameter, 2 flutes, single end, square end, long reach length, uncoated.
Ground from solid carbide. This tool cuts 1/2" diameter, runs a 1/2" shank, has 5/8" of flute and measures 4" overall.
The square end cuts a flat floor with a sharp corner — slots, pockets, shoulders and side milling.
The necked long-reach body gets the cutting edge down into a deep feature while keeping the shank close to full diameter for rigidity.
Uncoated, so the edge stays as sharp as it can be ground — the usual choice for aluminium and other soft, sticky materials.
Free TechTips resources for end mill users — machinist tested.
More help: Milling TechTips · Troubleshooting · Carbide vs. HSS Guide