The Work Sharp Rolling Knife Sharpener uses a magnetic angle block and rotating abrasives that quickly and easily sharpens any knife. The magnetic angle block has four sharpening angles (15°, 17°, 20° and 25°) to put an edge on a wide variety of knives from folders, pocket knives and kitchen knives to the optimum angle. The three abrasives — coarse 320 grit diamond, fine 600 grit diamond and fine ceramic hone will restore knives back to a razor-sharp edge. To use, simply place the knife against the magnetic angle block on one of the preset angles. Starting with the coarse abrasive, roll the abrasive along the cutting edge then quickly change to the finer abrasives to complete the process. MSRP: $149.45. Contact: www.workshoptools.com