Feb 09, 2005· I am putting together a pair of older Brown & Brockmeyer pedestal grinders. They are 1/2 HP, 3 phase, w/ 8 inch wheels. I need to outfit them with wheels (alum oxide). Grinder #1: I wish to put a wire wheel for deburring, rust removal, etc. Then for the other end an extra coarse wheel for fast and aggressive metal removal.