Sharpening high-speed steel

[Peter Collenette]

For some years I've had a Tormek Supergrind 1200. It still has the original wheel, in good condition, and I'm pretty happy with it - except when I sharpen my 2 3/8in. high-speed-steel-tipped plane iron. This is a frustratingly slow procedure because so little steel is removed, the only exception being when the water trough is almost dry and there's a grit slurry all over the wheel. Any tips? Or do I need a different wheel for HSS?

Thanks.

[Jeff Farris]

Clean your wheel frequently and aggressively with the coarse side of the stone grader when sharpening difficult steel.  Every couple of minutes is not too much.