Reach For A Stanley (July 2009)
Stanley No. 28 and No. 29 Cornering Tools
Sometimes when it comes to design simple is hard to beat.
The Stanley Cornering Tools are about as simple as tools get.
Based on a design used by pattern and cabinet makers for years the tool was introduced just before 1900 and stayed in production for 70 years.
The design features a small flat tool with half round bends at each end.
A half round groove parallel with the tool cuts though the metal at each bend. The groove has two sharp edges or cutters at each edge. The radius of the round over on the edge of the work is a function of the diameter of the groove.
Stanley offered the tool in two models, the No. 28 and No. 29.
Each model had two cutters, one on each end. The No. 28 cuts 1/16 and 1/8 inch radius while the larger No. 29 does 1/4 and 3/8 inch round overs.
The early No. 28 tool was narrower than later models which were the same width as the No. 29s. 
Using the tool is a long way from rocket science.
Cutting in both direction the tool can be pushed or pulled. The cut is controlled by the angle at which the tool is held to the work and with a few practice strokes one quickly gets the feel of it.
The design is such that the tool stops cutting when the corner has been rounded over to the desired radius.
The advantages of this tool are that it cuts in both directions and stops itself. With today’s grainy wood being able to go in both direction can be very handy.
However, it still takes some care to avoid “digging in” if the edge grain becomes too vertical.
Another advantage is that the round over radius can be started anywhere along the edge of the work and does not have to run out to the ends like most planes.
Sharpening is as easy as everything else about the tool. Round slipstones of the proper size can be used. If a slipstone is not available simply wrap a dowel in emery cloth. Draw the stone across the cutting edge and remove any burr that may have formed on the back side.
Availability:
These tools are quite common and original Stanley examples can be found for less then $50.00 as set. New ones are still being offered by Lee Valley and others.