1-3/16" cutting diameter, 5 flutes, single end, square end, uncoated.
This tool cuts 1-3/16" diameter, runs a 1" shank, has 1-1/2" of flute and measures 4" overall.
The square end cuts a flat floor with a sharp corner — slots, pockets, shoulders and side milling.
This is a rougher: the chip-breaking edge form cuts the cutting pressure and breaks the chip into short pieces, so it removes stock faster than a finishing tool at the same power.
Uncoated, so the edge stays as sharp as it can be ground — the usual choice for aluminium and other soft, sticky materials.
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