KMScott
Well-known member
Jeff is that a nice one, will not last long. I am working on a 544B Rock Island combination vise (Missing Pipe Jaw as usual) with the same 577 6" jaws and wanted to remove the swivel base until I seen how bad they designed the shoulder bolt and shoulder bolt swivel hole. How can anyone get a 1-3/8 open on this one. It is rusted in place which made matters worse. 5 minutes on the weld table and it is out. Just have to clean up the welds, add a nut some how and remachine the pocket so a socket can be used. Welding the nut heated the nut and broke the rust seal, some times you can get in trouble and Gaul the threads but I got lucky.
I have to re engineer the pipe jaws on this big vise and if anyone or even open for suggestions on how small of a pipe should be used as a guide line for the teeth design then I am all ears. The three pipe jaws are 3/4 wide, 4 inches tall and the pocket depths are 1-5/8 deep and 1" behind the jaws. Thanks in advance.
I have to re engineer the pipe jaws on this big vise and if anyone or even open for suggestions on how small of a pipe should be used as a guide line for the teeth design then I am all ears. The three pipe jaws are 3/4 wide, 4 inches tall and the pocket depths are 1-5/8 deep and 1" behind the jaws. Thanks in advance.





