The tools have a different radius on each end; one tool cuts a 1/16" and 1/8" radius, and the other cuts a 3/16" and 1/4" radius
Ground with two fixed fences to stop tool from cutting past fixed radius
Made from tool steel hardened to Rc48-52
Cut on either push or pull stroke
Accurately ground and ready for final honing
Set includes both cornering tools and sharpening kit; also includes an extrusion designed to sharpen the four different cutting radii plus the 1/2" radius inside curve, a piece of 600x silicon carbide paper and a wedged to hold it in position
