Having relinquished my tool & cutter grinder, I'm now again thinking about how to sharpen end mills - just touch them up on the end. I know for sure you can't do as good a job but I'm thinking about part no. 287-6840 here:
Thanks,
Grant Erwin
Having relinquished my tool & cutter grinder, I'm now again thinking about how to sharpen end mills - just touch them up on the end. I know for sure you can't do as good a job but I'm thinking about part no. 287-6840 here:
Thanks,
Grant Erwin
Grant, I have a cheap Chinese-made end mill holder/sharpener like the one you are talking about, and it does have a "fishtail" angle built into it. Mine is designed to work with 5C collets as holders, indexes about 12 points IIRC.
Grant Before I got my Monoset T&C grinder I used one of these all the time. The trick to getting fishtail is to put the endmill in so the you set the unit at an angle on the grinder table , not square to the line of trave. Then part of your land angle goes to giving primary relief and part of it gives the fishtail relief. IIRC, setting the unit about 30 degrees off the line gives 1 or 1 1/2 degrees fishtail.
Karl
Hi Steve , What is this sharpener and where is it sold?Thanks for any help. Tom Munroe"
I have one. The fishtail angle is built into the fixture and all you need to do is to align the base parallel with the grinder travel.
Randy
PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.