The Snap-on Heavy Duty Manual Interchangeable Master Puller Set, No. CJ2500, is designed to provide technicians next level access and power for a wide variety of pulling applications such as removal of gears, sprockets, pulleys, bearings, bushings, sleeves, and more. The components create 48 different puller configurations while the spring-loaded locking mechanism reduces the chances of the puller slipping off of the work surface as its jaws easily latch on for both inside and outside pulling applications. The reversible jaw design and two-position yokes accommodate multiple jaw lengths up to 15". The one-piece jaw construction of the CJ2500 doesn't use pins or bolts, providing a tough and safe jaw with six jaw sets.