There is a Cuttermaster video showing the procedure for sharpening a 6 flute endmill on the end but it involves turning and tilting the motor and spindle at specific angles so each flute can be sharpened without colliding with the adjacent flute. The Darex machine doesn't allow the operator to turn or tilt motor or spindle but nonetheless, it has the index ring that is stamped with a '6' indicating that the end of a six flute cutter can truly be sharpened.
I'll keep digging.
Stuart
Six flutes, certainly. End? Only maybe.
You honestly may not be able to "get there from here" with a
discontinued Darex instead of a larger / far more complex T&C grinder.
A Deckel/Alexander/Gorton-Lars/Chinese copy is intuitive. The Darex I can grok.
Cuttermaster makes my brain hurt - or at least my wallet - because a static picture gives the impression there ain't nothing THERE to work with. Enter a coupla grand worth of "accessories"???
Or maybe not so much. I shall have to go and find that video, thank you!
Buck's is the old way. Don't even try to do all flutes at the end. Corners do the work.
Just relieve the center and call it good for non-plunge use, or make but a single edge proud for slower, but still useful plunge use.
And it isn't ALWAYS even "slower".
Chip has to be created SOMEWHERE, but never LEFT there. Six converging end-flutes kinda crowds s**t when plunging and blind. Rare for a drill to have more than two, and "plunge" is ALL
they do.
Hit the wall? Do the easy ones. Send your sixers out rather than chase diminishing economic returns and waste a cutter now and then as well as billable time, always.