1. P2506
2. Operation
3. Operating Instructions
4. Sharpening the Stylus

Sharpening the Stylus

For best results, use a diamond wheel mounted on a tool post grinder in a lathe. Polish first with a Norton stone No. 37C4006V or equivalent then with Carborundum paper No. A935K500 or equivalent to a 10-15 micro finish. If such facilities are not available, the stylus can be sharpened with No. 19A 60L8V Norton wheel on a bench grinder.

Sharpen to an included angle of 90 ° with a point diameter of • 005" to . 015" fiat.

The stylus may be sharpened until the turned down portion at the end of the stylus holder is ground off.

This gives a usable length of stylus of approximately 1/4 inch as shown on the drawing below .