Features: The discs go from 18mm (25/32) all the way to 65mm (2-9/16″) in 1mm increments plus 2-29/32″ 74mm All discs are connected with a 12mm shaft and screw which quickly connects to a 180mm 7-1/2″ handle All 52 pieces are interchangeable with each other so you get 2450 different size variations Blow mold case for storage. Package Included: *1 x 52pc Bearing Seal Driver Tool Brand Beurbestparts Warranty 1 Year Manufacturer Part Number BE10721289UY84 UPC Does not apply Type Bearing Tools .