Grubber-Bar

The 2024  advanced Grubber-Bar was designed to protect the rear of molding while placed in the clamp. It equalizes the clamping pressure, self-correcting the 90-degree angle to match the miter (auto adjust up to 3 degrees). It also improves the clamp grip of the frame while allowing the elastic supple rubber to play its magic and optimize the surface contact at the joint. In addition, that low-profile rubber spacer allows better access to the rear of the frame, so framers can have hands-on experience when joining and see how to adjust/align the corner if/when needed. You need two grubber bars for one corner; if using four clamps, you'll need eight grubber bars. There is much more to say about this advantage. However, we researched it for a while, tested it, and know how NanoTech and science can be employed here. In short, we found it practical yet optional (case by case). Although resistant, the rubber strip (mounted on the aluminum bar) can be replaced easily (a self-adhesive grubber