Bulova Pin Grinder January 23, 2014 By Brittany Nicole Cox in Estate, Workshop Tags: antiques, Bulova, Clockmaking, clockmaking tools, collectibles, conservation, Dennis Harmon, estate sale, horology, pin grinder, restoration, Watchmaking, watchmaking tools 2 Comments Today I am featuring the Bulova pin grinder. It comes with a large set of grinding wheels, 8mm collets, a microscope, and more. The motor is operated by an on off unit activated by the right foot pedal. It’s in excellent working condition.