I use single flute 1/8" router bits, solid carbide 60* angle for part number engraving or even engraving fuel rails and custom motorcycle parts. I only go .005 per pass, .010 total depth at 12ipm on SS and 20imp on aluminum. .010" doesn't sound like much but it's pretty normal for engraving the parts that I do.
If your trying to cut a sign or something, try using a bigger endmill and do a "re-machine" opp with your 1/16". Your using 2 flute, right? And just a blast of air would help you more than a coolant flood in this case. Most important thing is get the chips out. |