• Next generation, SG ceramic alumina grain with self-lubricating, supersize treatment provides coolest cut with significantly faster cut rates and 2X-3X life on difficult to grind materials. • Best choice for tough applications and stainless stell or contoured surfaces. • All QC cloth discs are designed to run on back-up pads that are rated at or above the RPM of the grinder. • For applications that require better/decorative finishes, please refer to non-woven quick change discs. • 60, 80 & 100 grit are recommended for blending and deburring. • Ty TR/III fit roll-on/roll-off plastic attachment system. • 3-ply heavy-duty laminate discs for more aggressive stock removal offering the greatest durability, longest life, and edge-fray resistance on tough applications. • Tool-free, twist on and off fastening systems make fast work of disc changes to maximize productivity by minimizing downtime.