OTC's Bearing Splitters feature 'knife-like' edges which are easily placed behind the part to secure a gripping surface, even when clearances are extremely limited. When used with an OTC 'Grip-O-Matic' puller, puller jaws grip attachment's outer edge. When used with a Push-Puller, puller legs are threaded into the attachment's two tapped holes. Constructed from high strength materials designed for long term use under the harshest conditions. Combo set contains four of OTC's most popular bearing splitters, plus a pulley pulling attachment, all packed in a rugged organizer case that enables you to keep the tools together for instant use. Includes the following: 1121 - 1/4 to 15/16 inch spread, 1122 - 1/8 to 2 inch spread, 1123 - 1/2 to 4-5/8 inch spread, 1130 - 1/2 to 9 inch spread, 679 - pulley pulling attachment - 1-3/4 to 5-7/8 inch spread. Value is at the core of the OTC tool and equipment portfolio. Whether it's a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it's a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians' productivity and shop profits.