Mitchell's Abrasive Emery Cord No. 53. Mitchell's flexible abrasive cords and tapes debur, grind, and polish hard-to-reach areas which are inaccessible to most standard tools. Ideal for narrow slots and grooves, small holes, and curved surfaces. The round cords and flat tapes can be used on metal, plastic, and wood. Packed in adhesive tape like spools in generous 50-foot lengths. Cord diameter : 0.040" (1.02mm) Grain : 180 Grit Cord length : Approx. 50 ft (15.2m) Material : Aluminum Oxide Abrasive cords sand and clean hard to reach areas where your standard tools will not reach Ideal on metal, plastic, wood, or virtually any surface, fits in slots, grooves and small holes Cords and Tapes are fully coated on all sides for more complete and effective coverage Other size abrasive cord and tapes are available in our shop