i used 2 work in a tool crib for a machine shop & they used to send their bits both HSS and carbide out for regrinding all the time i am in canada but could check where they send them for resharpening.
fade2black said:I own a small acrylic fabrication business and have a questions about sharpening bits. I almost exclusively use a solid carbide, 1/2" shank spiral flush cut bit for everything I do. I router thousands of feet of acrylic every year and go through about 3-4 of these bits in a year. They dull fairly quickly and I can only get a few months out of them before they are just too dull to use anymore. I have asked a few places and they are telling me there is no place that can sharpen a spiral flush cut bit. I just figured I would ask the router experts here and see if that is truely the case. At $60-70 a pop, buying these bits adds up over time. I use these in a router table with a downdraft dust collector, so if there is a better option, I am all ears.