Protractors & Squares

Protractors & squares help you mark, measure, and verify angles and 90-degree references with confidence. Whether you’re framing, woodworking, metalworking, or setting up shop machines, these tools improve layout accuracy, reduce material waste, and deliver cleaner fits and finishes. A square confirms straight edges and right angles; a protractor or angle finder sets and reads precise angles for miters, bevels, and layout lines.

You’ll find a range of options to match your workflow. Combination squares offer a sliding stainless steel blade with a head that includes a 90/45 reference, scribe, and level vial. Speed squares are quick for roof pitches, square cuts, and repetitive layout. Try squares, engineer squares, and machinist squares deliver rigid accuracy for joinery and machine setup. Classic protractors and digital protractors provide angle measurements; digital angle finders and inclinometers add quick zeroing, hold functions, and backlit displays. Sliding bevel gauges transfer angles without guessing.

Look for durable materials like hardened tool steel or anodized aluminum, laser-etched graduations for long-lasting readability, and clear metric/imperial scales. Check tolerance and blade straightness, and choose lengths that match your projects—small for cabinet work, larger for framing and sheet goods. Features like a magnetic base, positive-lock knobs, and square heads with fine adjustment add speed and repeatability. For digital models, consider battery life, ease of zeroing, and protection ratings that handle jobsite dust and moisture.

Put these tools to work: set a table saw blade to 90 degrees, dial in a 45-degree miter, check fence alignment, verify cabinet carcass squareness, transfer angles from a wall to a cut list, or fixture parts for welding at consistent angles. Care is simple: wipe down after use, store dry, avoid drops, and occasionally verify squareness with a quick flip test. With protractors & squares tuned and ready, your measurements stay true, your layouts stay crisp, and your builds go together the first time.