Foredom A-SR240-12. 240 grit sandpaper roll, mounted on 3/32" (2.35 mm) shanks. These sandpaper rolls are efficient and economical for fast clean up, sanding and pre-polishing. 5,000 RPM Max Speed
As the abrasive wears, simply peel the paper back and tear it off to expose fresh abrasive. The roll is made up of 1" wide x 10" lengths of high-quality abrasive paper. Overall length of accessory is 2-1/4" (57 mm). *Optimum Operating Speeds are much lower (between 25% – 50% of maximum speeds) and also depend on the type of workpiece.