Skews are among the trickiest tools to use in turning without causing digs.
To prevent digs, this jig allows you to grind a slight radius rather than a straight 20° skew. It can be used on just about any grinder; all you need to do is drill a 6.4mm (1/4in) hole in the tool rest (if required) to hold the base pin.
The radius of the grind is determined by the amount the skew projects from the jig. After grinding one side, you flip the skew to the other side of the jig and repeat.
The skew is clamped in position, which leaves both hands free to regulate grinding pressure and travel across the wheel.
The pin is steel; otherwise, the jig is brass and anodized aluminum.