The Speed Lock 6″ Vise is solid, rigid and has reliable repeatability. The hole pattern on our 6″ vise matches the industry standard, so all your existing custom jaws will drop right into the Speed Lock 6″ vise. Our jaw bolts are standard 1/2-13 socket head cap screws, that uses a large easy to handle, 3/8 hex key. The Winn quick change jaw system will allow a machine shop to change the vise jaws in 30 second or less. This will save you money because the setups on your CNC machines that have vise jaw changes will take less time.