The puller is securely locked when the head is turned . Includes the 2-way and 3- way puller heads. Works well when removing gears, bearings, timing gears, harmonic balancer, and other press fitted parts. Plastic storage box included Components can be assembled to create several versatile puller versions for both internal and external pulling tasks. The puller head is turned to securely lock the jaws onto the part being removed. Both a 2-way and 3-way puller head are included, plus three long-reach and three short-reach puller jaws.  Includes: OTC1121, Bearing splitter with 15/16" max spread and 1/4" minimum spread, OTC1122, Bearing splitter with 2" maximum spread and 1/8" minimum spread, OTC1123, Bearing splitter with 4-5/8" maximum spread and 1/2" minimum spread, OTC1130, Bearing splitter with 9" maximum spread and 1/2" minimum spread, OTC679, Pulley pulling attachment with a 5-7/8" maximum spread and 1-3/4" minimum spread.