OTC 1123 Bearing Splitter 1/2" to 4-5/8" features '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. Max. Spread 4-5/8", Min. Spread 1/2", Thread of tapped holes in adapter 5/8"–18. The distance between adjusting screws is 4-3/8". For use with OTC pullers Numbered: 1035, 1036, 1037, 1038 and 927.