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Wise Buys: Right-angle Assembly Squares

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Pinnacle Clamping Squares

Pinnacle Clamping Squares

2-3/4" brace (#147850); 6" brace (#147530); clamps not included

Editor test-drive:
In the past I struggled with trying to get drawers square--even half-blind and through dovetails and box joints--while measuring the diagonals and adjusting the clamps before the glue could set. Pinnacle's squares eliminate that worry. All I have to do is lightly secure two squares in opposing corners (I use small F-style or one-handed bar clamps) to hold them square, and then add longer clamps to pull the joints together tightly.

These machined aluminum squares proved accurate to within 0.001" of 90° over their 6" length. I like the rounded corners that allow clamping inside or outside the box without getting into glue squeeze-out. To help assemble a bunch of picture frames, I screwed three squares to an MDF jig, guaranteeing three square corners. Then I glued the pieces, placed them in the jig, and clamped the fourth square against the open corner for perfect frames time after time. The small models also worked great for squaring the bracket feet on a bookcase.

--Tested by Bob Hunter, Tools & Techniques Editor

To learn more:
800-225-1153; woodcraft.com


 

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