3M Standard Abrasives A/O R4 Straight Precision Cartridge Roll 726020 1/4 in x 1-1/4 in x 1/8 in 80 25 per inner 250 per case

Standard Abrasives(TM) Aluminum Oxide Precision Cartridge Roll Model R is ideal for high-speed grinding and deburring on irregular contours and hard-to-reach areas on all ferrous metals. The drive stem is solidly affixed to the rear of the roll, and the solid inner core is bonded with the inner layers for greater stability, a smoother application and longer life than conventional cartridge rolls. Precision Cartridge Rolls are used when high tolerance and precision grinding is required.