Skew Chisel

Guidelines shown below are for use with the Tormek SVS-50 Multi Jig using the Closed Seat. The method for measuring the projection is shown on the right.

This tool is one where reshaping the cutting surface can be onerous, and the Tormek BGM-100 Bench Grinding Mounting Set can be quite useful. When grinding on a high speed grinder, all the settings remain the same. (For more information on Shaping vs. Sharpening, see also, Grindstones and Other Sharpening Media.)

Alan Batty stated that you can have an α up to 55º for hardwoods, and down to 25º for softwoods, but he usually worked with an α up to 40º.

Another rule often cited is that the length of the bevel should be 1.5 - 2 x the thickness of the skew (equates to 30º - 39º).

General Guidelines
Edge (Included) Angle (α) Skew Angle (β) Profile Tormek
SVS-50
Comments
α α Range β β Range α JS P Hole
40º 25º - 55º 20º 20º - 35º Straight Edge
30º 20º 65 mm B For tight spots, detail work and finest finish. However, this is harder to control and is not recommended for starter-level turners.
45º 55 mm B For broad application. Easier to control than a 30° edge angle.
40º 25º - 55º n/a Radius Edge
30º 30º 75 mm B For tight spots, detail work and finest finish. However, this is harder to control and is not recommended for starter-level turners.
45º 20º 65 mm B For broad application. Easier to control than a 30° edge angle.


Notes & Comments
Information regarding Grindstones




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