It clamps blades up to 8" wide (including hand-plane blades) for sharpening on PSA-backed abrasives. Just stick the abrasive to a flat surface (plate glass works well), adjust the elevating screw until the bevel is flat on the abrasive, and use it as you would any other honing guide. After basic sharpening, switch to a fine abrasive, and hone a fine micro-bevel. Two position stops ensure that successive blades are honed identically. It is both easy and effective, letting you quickly restore blades that you would probably let become far duller before sending out for service.
Made of cast aluminum with brass and steel fittings. It comes with a half sheet (5-1/2" x 8-1/2") of 15 micron (aprox.1000 grit) 3M micro-abrasive film. This PSA-backed film is also available in 5 micron (aprox. 2500 grit).
Made in Canada.