"PrecisionmachinisT" fired this volley
in news:vJGdnaDui86CoTTSnZ2dnUVZ_uCdnZ2d@scnresearch. com:


Cobalt is not a coating; it's a premuim grade of tool steel that's been
formulated with a higher cobalt content, for the purpose of increasing
red-hardness and abrasion resistance.

Correct; I saw "coated" when he wrote that. Cobalt alloy cutters and
drills are more than "just a few cents more".

Lloyd