59/64" solid carbide square end mill, Sky Coat, 4 flutes, 1-1/2" length of cut, 4" overall length.
A general-purpose workhorse: HTC solid carbide square end mills, single end, finished with HTC's Sky Coat. The coating adds surface hardness and heat resistance at the cutting edge, letting the tool run at higher speeds and feeds and last longer in tougher, more abrasive materials than an uncoated equivalent. That makes this family a strong default choice when one line of end mills has to cover a wide mix of jobs and materials.
The solid carbide body gives the rigidity needed for accurate slots, shoulders and profiles, while the square end produces clean, sharp internal corners. The series covers a wide spread of diameters, flute counts, lengths of cut and overall lengths — from fine detail work up through full-depth slotting — so you can stay within one proven family as your work changes.