Rose Engine Fly Cutter, Traditional

Sharpen the edge using a goniostat (or goneostat, if you prefer the Queen's English) to ensure the correct angle is maintained.

Sharpening with lapping compounds of 6, 3, 2, and finally 1 micron are recommended. The 1 micron paste should also used for resharpening via a micro bevel approach.

Additional honing information is in the Notes & Comments section below.

Some historical information about sharpening these is available on the Ornamental Turning Book of Knowledge.

General Guidelines
Usage Micro Bevel Notes
Hardwoods and Ivory-like Materials 60° - 65° 3° - 5° This is recommended by Holtzapffel, but if the original angle is different, it is best to match that. Higher angles are recommended for reducing chatter in the cutting operation.
Metal 70° - 75° 3° - 5°

Notes & Comments

The Accu-Finish machine has been used for years by machinists. These machines use diamond wheels, or a ceramic lapping wheel with a diamond spray. It is is a really great machine, especially as it has a built-in goniostat, but it can be a bit expensive.

The video to the left shows a demonstration of one that was given at the 2018 Ornamental Turners International Symposium.

I've found the Tormek grinder to meet my needs, though I did have to make some of my own jigs.

Tormek is a copyrighted logo of Tormek AB. Its presentation on this site is used to help the user quickly understand when specific Tormek tools, jigs, or setting are being used. For specific information regarding Tormek AB, or its products, please refer to the

About this site
Remember : The goal of sharpening is to produce sharp tools, and these tools can injure you if mishandled. Safety measures should be followed to protect yourself and those in your shop. Be sure to read and follow all instructions from the manufacturer, and and utilize proper safety equipment. Never consume alcohol or anything that could impair your judgement before sharpening tools, or using sharp tools. Comments can be sent via eMail to me at