5/8" Spoon Cutter, center cutting, single end, 35° helix, 3 flutes, 0.030-0.035" corner radius, uncoated.
A spoon cutter is a center-cutting single-end mill with a gashed, spoon-shaped end, so it can plunge straight into the material and then feed sideways without a pilot hole. This one is ground from solid carbide and cuts 5/8" diameter on a 5/8" shank, with 1-5/8" of flute and 3-1/2" overall.
Stainless work-hardens the moment the edge stops cutting, so this geometry is ground to keep a positive rake and shear the chip rather than rub it.
The uncoated, polished flute leaves the sharpest possible edge — the usual choice for aluminium and other soft, sticky materials where a coating only adds edge radius.
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