PMD Products 19 Piece Jumbo Large Bearing Bushing Seal Disc Driver Tool Set 2-3/4 inch to 6 inch All Steel Kit is massive Weight 43lbs ; Tool Sizes 2-3/4" (70mm) to 6" (150mm) in 5mm steps his ALL Metal jumbo set allows you to assemble any large custom size driver tool. Large size to fit oversize bearings, seals, and bushings. Tool allows any size disc to be assemble to the driver handle to provide 17 different driver tools Discs are connected with a shaft and screw on to the 10-3/4" (275mm) long handle tool with diameter of 3/4" (19mm) Every Disc is 0.495" (1/2" ) thick. Handle is knurled for increased grip