MINI MANDREL, SHANK DIA. 1/4 IN., PILOT DIA. 1/4 IN., PILOT LENGTH 2-7/8 IN., FOR USE WITH 1 TO 1-1/2 IN. PIECES OF SCOTCH-BRITE MANDREL, MAX. RPM 14,000 FOR INDUSTRIAL/OCCUPATIONAL USE ONLY. NOT FOR CONSUMER SALE OR USE. 3M SAFETY DATA SHEET?S (SDS) ARE AVAILABLE ON THE 3M WEBSITE AT WWW.3M.COM/SDS