Check the listing for details. TORMEK SVH-320 Planer/Jointer Blade Jig. Condition: New. Listed at 248.00 USD. TORMEK SVH-320 Planer/Jointer Blade Jig The SVH-320 Planer Blade Attachment is used for sharpening HSS planer or jointer blades of any length up to 36". The minimum blade width is 13mm (1/2in.) The jig indexes off of the back edge of the planer blade. The positive stop insures that you grind a perfectly straight edge. By indexing from the back of the blade, you can re-position the knife any number of times necessary to grind the full length of the blade. You can grind up to 13 inches without re-positioning. Longer blades (even up to 36") require re-positioning, but can be ground to amazing accuracy -- even by a novice operator. This attachment can also be used to sharpen mitre guillotine blades. (Please note: Jig shown with TORMEK Water Cooled Sharpening System. System SOLD SEPARATELY.) Watch the video at Advanced Machinery: search for Advanced Machinery SVH-320 .