Few things are handier in the furniture or cabinet shop than an accurate tool that can check for square and 45° in tight spaces. Woodpeckers Precision Triangles certainly fit that description. These 90°-45°-45° triangles are machined to the same stringent tolerances as our Precision Woodworking Squares and lie flat on a machine table top or the bottom of a drawer you’re assembling.
They’re available in 4" and 6" sizes.If you buy the pair, they nest together with three brass knobs. When they’re fastened together, the combined tool has a nice heft, but if space is tight or you need both at the same time, they come apart in seconds.