End Mill Sharpening Fixture with plans

[jjr2001]

End Mill Grinding/Sharpening Fixture With Plans.
This is a simplified design using 5C collets to hold the end mill and a bench grinder with a fine grinding wheel. Having a good articulating grinding rest is very helpful.

This unit is similar to one by Harold Hall and others except I am using off the shelf collets and collet blocks. With a Hex block and a Square block you can sharpen two flute, three flute and 4 flute end mills. This fixture is just for sharpening the end and not the flutes. I find the ends need sharpening much more often than the flutes.
Here is the link for HH Sharpening Fixture:
Homemade End Mill Sharpening Jig - HomemadeTools.net


I used this to sharpen 11 end mills that I had put in my not useable box and they all sharpened to cut much like a new one in both steel and aluminum. This fixture is quite worthwhile. If you build one please post it.

I used Aluminum for the base and 1018 steel for the main block and other associated parts.
The adjusting screw is a section of all thread. The adjustment knob is brass as is the clamp washer for the main block.

Cheers, JR