The Lot of 2 RIDGID 4.5" Turbo Cup Wheels offer high-performance sanding, grinding, and polishing capabilities with a maximum RPM of 13,300. These diamond grinding wheels are designed for heavy-duty use with angle grinders, featuring a straight cup grinding wheel design with 14 segments for efficient cutting. The 5/8" arbor size and 4.5" wheel diameter make it compatible with various power tools and grinding applications. With free shipping included, these cups wheels provide a durable and reliable solution for metalworking projects.