Norton® Air-Cooled 4 1/2" Medium Grade Rubber Back-Up Pad is used for aggressive cutting action. Back-Up Pad runs at the maximum speed of 11000 RPM and is ideal to use with fiber discs.
Features
Designed for medium to heavy grinding applications
Slotted aluminum hub design draws cool air behind the disc
Curved ribs on the rubber face force heat away from the disc and Backing pad
Cooler cutting action reduces disc loading and increases grinding life
All pads have a 5/8"-11 threaded female hub for mounting
Medium pads offer great flexibility hard pads provide more aggressive cut