3M 61988809358 MINI MANDREL 935 2-7/8"" X 1/4"" APPLICATIONS ARE POWER TOOLS ACCESSORIES COMPOUNDS SPECIALTIES. INDUSTRIES INCLUDE AEROSPACE AOEM COMPOSITE CUTTING TOOL MANUFACTURING GENERAL INDUSTRIAL MARINE METALWORKING MRO PAINT PREPARATION PRIMARY METAL TRANSPORTATION & HEAVY EQUIPMENT WOODWORKING. 3M MINI MANDREL IS A TOOL ATTACHMENT THAT HOLDS A 1 INCH WIDE STRIP OF SCOTCH-BRITE NON-WOVEN MATERIAL ENABLING THE USER TO CLEAN POLISH OR DEBURR THE INSIDE DIAMETER OF A PIPE OR OTHER CYLINDER. THE 2-7/8 INCH LONG MINI MANDREL FITS ONTO A ROTARY TOOL LIKE A DIE GRINDER OR DRILL. THE SHANK OF THE MANDREL IS 1/4 INCH DIAMETER AND COMPATIBLE WITH A 1/4 INCH POWER TOOL COLLET OR DRILL CHUCK.