Upholstery 7/8" Foam Cutter, perfect for upholstery tufting. Easy to use with any drill, sharp, efficient and a must have when cutting foam circles. Made by C.S. Osborne & CO. Extremely sharp carbonized cutting edge. Attaches to a drill press or with a hand held power drill. For soft materials only. Length of holding tip: 7/8" Length of cutting cylinder: 3"