Necessary for pulling and installing bearings, gears, or other parts found on hollow shafts or housings. They may be used with Grip-O-Matic pullers and Push-Pullers, as well as shop presses. Includes: No. 8057 - 1" x 3/4"; No. 8058 - 1-1/8" x 7/8"; No. 8059 - 1-1/4" x 1"; No. 8060 - 1-3/8" x 1-1/8"; No. 8061 - 1-5/8" x 1-1/4"; No. 8062. - 1-3/4" x 1-3/8"