Description 4.5″ X .045″ X 7/8″ CUT-OFF WHEEL TYPE 27 METAL Size: 4.5″ x .045 Arbor: 7/8″ Type 27 – Depressed Center RPM: 13,300 Double Reinforced Aluminum Oxide For Cutting Ferrous Metals General Purpose The actual product may vary from the images shown on the website.