50 INCH CLAMPZILLA (1-PACK) - Included in this item is a single 50 inch Clampzilla 4-way panel clamp. This single clamp replaces the need for 2 regular bar clamps, 2 "F" style clamps and a set of clamping cauls. 4-WAY PANEL CLAMP - With a single screw turn, the Clampzilla Panel Clamp applies vertical and horizontal pressure simultaneously. Available in 18", 38" and 50" capacity. SELF-CENTERING SCISSORS JOINT - The Clampzilla places bars on both sides of your stock, joined together by a self-centering scissors joint on both ends. This focuses lateral pressure on the exact center of your panel (which avoids bowing), while applying vertical pressure to keep the faces correctly aligned. MATERIAL SIZES - Clampzilla works with stock from 5/8" to 4". For jobs thinner than 5/8", you can add a piece of 3/4" material above and below your stock to get all the benefits of Clampzilla. MADE IN USA - Like all Woodpeckers products, the ClampZILLA 4-Way Panel Clamps are precisely machined and carefully inspected in our Strongsville, Ohio factory (just south of Cleveland).

Woodpeckers ClampZILLA 4-Way Panel Clamp places bars on both sides of your stock, joined together by a self-centering scissors joint on both ends. ClampZILLA focuses the lateral pressure on the exact center of your panel (which avoids bowing), while applying vertical pressure to keep the faces correctly aligned. That’s been true for two OneTIME Tool releases of ClampZILLA, but now we’ve improved it with more attachment points in the bars & a new scissors joint design that applies almost double the vertical clamping pressure & improves clearance on thicker work.

In addition to keeping your panels flatter, ClampZILLA saves you both time & the need for multiple clamps. You would need 2 regular bar clamps plus 2 “F” clamps & a set of clamping cauls to replace one ClampZILLA 4-Way Panel Clamp. That’s 4 screws that you have to adjust, while ClampZILLA applies vertical and horizontal pressure simultaneously by simply turning 1 screw. Your boards move into proper alignment as the edges come together. No more anxiety-filled gluing sessions worrying about the glue starting to set before you get just the right amount of pressure on each clamp.

ClampZILLA’s updated design works with stock from 5/8" to 4". For jobs thinner than 5/8", you can add a piece of 3/4" material above and below your stock and get all the benefits of ClampZILLA’s centered lateral pressure and simultaneous vertical pressure on stock down to 1/4", or even less. End spacers are no longer needed on thick glue-ups and the vertical pressure is almost double that of the earlier design.

ClampZILLA earned its unusual name when we ran it through some torture testing. It took a three-foot long cheater bar and all of the product developer’s strength to break the Acme-threaded clamping screw. Just before failure, ClampZILLA was exerting over 6,500 pounds of clamping pressure. And to be honest, it was still exerting that much pressure after failure…the screw broke at the handle.