Woodpeckers CornerLocks spring into action whenever you need two pieces of stock held square to each other. Use them to hold projects in alignment while your install fasteners, apply bar clamps or figure out the next step in your process. They couldn't be easier to use. Just compress the spring and drop the CornerLock over the two pieces. The spring captures your material between a square steel corner and two alignment pins. Just slide the stock into perfect alignment and you're done.
https://www.woodpeck.com/cornerlock-c...