Sparex source: https://us.sparex.com/metal-cutting-disc-4-1-2-x-1-8-x-7-8-a30rbf-11747.html Product: Metal Cutting Disc ø4-1/2'' X 1/8'' X 7/8'' a30rbf - Sparex S.11747 SKU: S.11747 Listing note: 13,300rpm - 80 M/S RPMManufactured to European quality standards, a high performance disc designed for speed, accuracy and long life.Proflex discs offer professional quality performance and are a great value product.Free from Iron, Sulpher & ChlorineSuitable for use on Steel Pipe, Mild, Sheet & High Grade SteelStraight and fast cuttingExceptional cost per cut ratio. Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.