Pferd Bench grind consists of a regular aluminium oxide in glazed bond. These products are particularly suitable for high performance (HSS), steel, cast steel, cast iron. Application: deburring semi-finished steel and products. Regrinding and sharpening of HSS tools such as drills and tools. various maintenance applications. Recommendations for use: when a bench grinding wheel starts to show signs of loading, use, 28 stones on the side. Suitable tool drives are bench toilet mat and angle grinder. Safety recommendations: The maximum speed is calculated in accordance with ANSI B7.1. No more than the maximum speed of wheel labels listed. Attention: Smaller spindles often drive at higher speeds. Before assembly, all wheels are visually examined damage and cracks. Perform the ring test before assembly. an undamaged wheel give a clear sound. Specification: 8" diameter 1" thick; 1-1/4" arbor hole; 60 grit; 3600 RPM Max. RPM