KLINGSPOR R-Flex mounted points are quite possibly unlike anything you have used before. These 1/4" spindle-mounted tools are made of proprietary "elastic" type material that gives it a firm rubbery feel. Embedded with grits, R-Flex works well for light deburring, but offers excellent surface finishes on aluminum, steel, stainless steel, and metals of all types. Use to clean up golf clubs, lawn mower blades, remove rust and scale or paint from small parts, sharpen scissors, etc. Best of all, they can be shaped to fit a particular contour by "carving" them with a knife prior to use or will conform to the shape during use. Chucks perfectly in any 1/4 drill or drill press. Size: 2-3/8" x 1-1/8". 240 grit.
RPM maximum is very important - DO NOT EXCEED 4800 RPMS