Copy of Picture framing magazine Rob Markof review of MasterClamp

MasterClamp V-5 Pro

After several versions and revisions, I think MasterClamp V5-Pro may be the best miter clamp ever made. It is beau­tifully machined, made in America and is a lifetime tool. In the event that your miters are not perfect 45 degrees, the jaws may be fine-tuned to achieve perfect surface contact for a strong joint. However, the best feature is the 

 ability for the miter fences to also be adjusted inwards. This is the perfect clamp for tall shadowbox and stem mouldings because it also applies  at the top of the moulding and not just at the bottom. The clamp is intended to be used to glue the joint first and allowing the miter to completely dry before adding v-nails or other fasteners to reinforce the miter. www.masterclamp.com