Making an elephant foot

[Toolmaker51]

To Marv & PJ's, and any other interested economical types, or anybody at 2:30 in the morning.

Well, I'm something of a Neanderthal when it comes to sharpening so the "real" machinists may take me to task...
I mount a small cylindrical stone in the Foredom and insert it in the swarf clearance holes in the die, carefully grinding the leading edge of the teeth that can be reached. Doing this for each hole improves performance enough to satisfy me.

"NO WE WON"T Marv." Toolmaker51
It's exactly how we'd accomplish that. On larger dies perhaps a jig grinder, or by hand, over an inverted spindle and table; like a router. Only the leading edge guys, and in small increments! Usually first tooth is chipped at side or top - warrants close examination. Stay away from perimeter where hole and OD are close. Those puppies are brittle.