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Selected Shapes and Edge Angles
There are quite a few manufacturers of turning tools and the shapes and edge angles vary
considerably. For example there are factory made skew chisels with skew angles from 15°
to 30° and the edge angles vary from 25° to 40°. Factory made bowl gouges have edge
angles from 30° to 60°.
The wide range of shapes is the reason why recommendations for setting the shape and
edge angle can be hard to define. At first we only offered the technique, and left it to each
woodturner to find their own geometry, i.e. shape and edge angle. However, after working
with many turners around the world, we saw the need for a tool that would aid in the setting
of jigs and provide advice for suitable shapes and edge angles. The TTS‑100 Turning Tool
Setter offers both.
The Selection Chart on the next page shows geometries recommended by experienced
woodturners and recognized woodturning training workshops around the world such as
Craft Supplies in the USA, Drechselstube Neckarsteinach in Germany, Glenn Lucas in Ire‑
land, Nick Agar in the USA, among others.
Since a tool can have an unlimited number of combinations of shapes and edge angles,
a new tool will more than likely have a different shape than any of the shapes on the chart.
Therefore, you first need to shape your tool to one of these geometries. Then, subsequent
sharpenings will be effortless and accomplished in less than a minute.
Tip Stick to the shape you have chosen. Altering the shape even slightly,
takes unnecessary time away from your turning. If you want a different
shape for a different type of work, buy an additional tool and keep the
unique shape permanently rather than changing it each time you change
your work. In the long run this will save you time and money. Your tools will
last your lifetime since you just touch up the edge when sharpening.
Profile Labels
Note the settings on a Profile Label, which comes with the TTS‑100 Turning Tool Setter, and
put it on the ferrule of the tool. Now you have a reminder of the three settings and you can
exactly replicate them every time.
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