PEC Tools Machinist Square – Precision Ground Hardened Steel, 3x2-1/2 in Fixed 90°

Precision you can rely on for layout and marking

Meet the PEC Tools Machinist Square, a fixed square built for dependable reference in woodworking and metalworking. With a robust hardened tool steel body, this 3 inch blade is permanently fixed to a beam at a 90-degree angle, delivering stable, repeatable layout lines that you can trust across tasks from simple joinery to setup work in a shop or studio.

Key features support consistent results: blades and beams are precision ground to preserve true right angles on both the inside and outside edges. The specified tolerance of ±0.0006 inches helps you gauge where to cut, drill, or align components with greater confidence. A debris notch at the inside corner helps prevent dust and metal particles from accumulating, supporting measurement stability and reducing stray marks over time.

What you get

• Fixed design with no moving parts for stable reference
• True inside and outside edges for reliable 90-degree angles
• Hardened tool steel construction with precision-ground blade and beam
• Blade length measured from inner edge of the beam to the tip
• Debris notch to reduce buildup and preserve accuracy
• Heritage of PEC since 1960, a name associated with precision machining tools

Ideal use scenarios

• Marking precise layout lines on wood panels, cabinetry, picture frames, and DIY jigs
• Checking squareness during assembly or setup on small machining projects
• Establishing drill guides and reference edges in metalworking and hobby shops
• Creating repeatable reference points for sanding, routing, or edge alignment

Practical tips: store in a dry place, wipe after use, and avoid moisture to preserve surface finish. While results can vary with technique and material, this square is designed to maintain its tolerances under typical shop conditions and to support consistent, accurate workflows.