Replacement blade for our Concave Sole Boggs Spokeshave.
The blade has a 25° bevel and is bedded at 40° to the sole, bevel down.
This tool is set up to take thin shavings (maximum .008-.010" or so). A tool with a large mouth will not perform as well on finish cuts. If you need a heavier cut, the tool can be easily modified by filing a chamfer on the leading edge of the mouth to allow a bigger shaving to pass.
Use the spokeshave to work a 1-½" piece of wood to a radius that matches the blade when the blade is held at 25º to its surface (the angle of the bevel). Glue sandpaper or microfilm to the wood and use to hone the blade. Make several pieces for different grits. Use with diamond paste or honing compounds to polish the bevel for the best edge. Hone the back of the blade as usual.
Made from A2 Tool Steel, cryogenically treated, hardened to Rockwell 60-62 and double tempered. Our heat treating technique ensures that the blade will take and hold a very fine edge for a long time. After heat treating, the blade is fully surface ground on the top, back, and cutting edge, giving a smooth, flat surface that will take a mirror finish very quickly.
Blades should be kept lightly oiled or waxed to prevent rust. We recommend Jojoba Oil, a plant based oil product that is non-toxic, odor-free and easy to use. Also, in our shop, we use a fine abrasive handblock to remove any light surface oxide from tool bodies and blades. Jojoba Oil and abrasive handblocks are available from us.