Features and Benefits: Minimum spread of 1/8" and a maximum spread of 2" ; Use with puller Nos. 1024, 1025, 1026, 1027, 7392, and 7393 ; 3/8" - 16 thread of tapped hole in adapter; 2-7/16" distance between adjusting screws; Weight is only 1 lb. 4 oz.; These versatile accessories feature "knife-like" edges, which are easily placed behind the part to secure a gripping surface, even when clearances are extremely limited. This is a very durable and handy to have around. 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.