Agreed, however when the PowerHone first came out there wasn't much (or any) carbide being used for gravers and overheating HSS was always a concern, so the RPM was kept slow enough to prevent that. Nowadays carbide is the choice for many and it's not subject to heat like HSS is, so a high speed...
The PowerHone is a fixed speed of 260RPM. The GraverHone is adjustable speed and makes shaping new gravers 10x faster and easier. It’s also a high precision tool with 0° toolpost accuracy.
Sharpen the face to whatever angle you wish.
Set toolpost angle to desired amount.
Dial-in the rotation angle by testing until you get the desired result.
Write down the numbers for future use.
I'm pretty sure I mention in the video that the more metal you remove per cut, the greater the demands of graver control. Flare cutting is prefect example of that, as is script lettering. But flare cutting probably requires a bit more because it's often a much larger, longer, and wider cut than...
Brian hasn't been around much lately. I don't know what his status is but he pops in from time to time. He might be retired but I don't know for certain. I can't think of a school on the west coast but you might try posting in my facebook group ENGRAVING BENCH and see if there's a teacher or a...