Brown & Sharpe 510 Micromaster Surface Grinder- Excellent Cond!!! $750.00. Local Pickup. or Best Offer. DoAll 6" x 12" Manual DH-612 Surface Grinder 220 VAC 3Ph 60 Hz. Used U.S.A. 5 out of 5 stars. (1) 1 product ratings - DoAll 6" x 12" Manual DH-612 Surface Grinder 220 VAC 3Ph 60 Hz.