This is the exact sandpaper we selected for the Shelter Sharpening Kit, and the reason is simple: it works. Norton Gold sticky-back rolls lay flat on float glass, stay put through honing pressure, and cut steel consistently from first stroke to last. The abrasive is P-graded aluminum oxide on a strong paper backing with a no-load stearate coating, so the paper cuts cool and does not clog with swarf. The 2-3/4-in width covers any chisel or plane iron you own, and 25 yards per roll means a season of sharpening from one purchase. Use 80 grit to reshape a bevel or take out a nick, 180 for general sharpening, and 320 for the fine edge before you strop. Peel, stick, sharpen. Specifications: Options: 80, 180, or 320 grit Size: 2-3/4 in wide x 25 yd rolls Abrasive: P-graded aluminum oxide, no-load stearate coating Backing: pressure-sensitive adhesive (sticky back) paper, adheres to float glass Use: 80 for reshaping and nicks, 180 for general sharpening, 320 for finer sharpening Made by: Norton (Saint-Gobain Abrasives)