Made of hardwood and hand sanded to a smooth finish. Use this 2-3/4 block when working with fine or soft metals and marring could be an issue. – Four round depressions: 2-1/4 2-1/8 1-7/8 and 1-3/4 diameters. – Five ôUö channels. – Two 90░ channels. – Two 45░ grooves.








