4-1/2" x 5/8" Polifan-Curve Flap Disc - Radial (Type PFR), Special Line SG-PLUS, 60 Grit, 5/8"-11 Thread, Medium Grade, Ceramic Oxide CO, 13,300 Max RPM, Suitable For Aluminum (Medium and Hard Grades), High Nickel Alloys, Steel and Stainless Steel (INOX)

POLIFAN-CURVE is a PFERD innovation designed to quickly achieve a smooth, consistent surface finish on fillet welds. The unique radial construction shape (PFR) offers a superior solution for this common task. Tough and aggressive " removes scale and bead from all metals: steel, stainless steel (INOX), aluminum and alloys. Works faster than grinding wheels without the risk of undercutting the workpiece. Precise grinding out of fillet welds provides a superior surface finish. Smooth finish allows easy visual inspection for defects, such as porosity and inclusions. Ideal for repair applications to remove defects without damage to adjacent areas. Leaves ample room for new weld bead. Excellent tool life, including the radius edge of the disc. Multi-purpose " may be used as a conventional flap disc, and also for underhand applications using the top of the disc. POLIFAN SGP CO-CURVE is designed for demanding grinding, especially for achieving fine surface finishes. The top-sized ceramic grain guarantees cool grinding on poor heat-conducting materials, without thermal damage to workpiece.Application: Fillet weld grinding, chamfering, deburringRecommendation for Use: The best results are achieved on high-performance angle grinders.