Firepower 1423-3199 Depressed Center Grinding Wheels, Type 27, 4-1/2 x 1/8 x 7/8

Firepower depressed center wheels are fully reinforced with resin bonded aluminum oxide to ensure safety at high speed and to increase bonding and impact strength. Designed for use on air or electric powered right angle or vertical shaft grinders. Available with or without hubs. Max RPM: 13,300 Grade:A36S