On Thu, 22 May 2014 12:26:51 -0500, Tim Wescott
wrote:



It sounds like diamond-coated may be better, but plain ol' carbide will
work -- "Standard carbide end mills will work most of the time."

Enco has some 1/8" diameter plain old carbide end mills for $8/pop.

If TiAlN coated endmills are available at a small premium they may be
worth the money. The coating makes a huge difference in abrasive
metals, moly and tungsten, for example.

--
Ned Simmons