The OTC 1127 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, the puller jaws grip attachment's outer edge; when used with a Push-Puller, the puller legs are threaded into the attachment's two tapped holes. For use with OTC 1047, OTC 1073, and OTC 939 pullers.