Carpenter's Square Grot 300 mm model G-400-0630 — 300 mm steel try square for woodworking

Grot carpenter's square 300 mm (model G-400-0630) is a 300 mm steel try square designed for woodworking and joinery tasks. The tool combines a rigid steel blade with a solid butt to check and mark right angles, verify edge squareness, and assist in layout work. Its durable construction provides stable reference edges for measuring, marking, and checking mitres and panel alignment in carpentry and furniture making.

Advantages

The tool offers a precise 90° reference edge with a straight, hardened steel blade that resists bending and wear during repeated use. The butt is manufactured to provide stable contact against workpieces for reliable marking and transfer of measurements. The compact 300 mm blade balances portability and working reach, making it convenient for bench and on-site tasks. Its all-steel construction simplifies maintenance and ensures long-term dimensional stability under normal workshop conditions.

Suitable for

• Checking and marking right angles on boards and panels
• Verifying squareness of edges and faces
• Layout and marking work for joinery and furniture components
• Setting and checking mitre joints and panel alignment
• General measuring and marking in carpentry and woodworking

Key specifications

• Blade length: 300 mm
• Material: hardened steel blade and steel butt
• Angle accuracy: 90° reference for marking and checking (try square)
• Construction: one-piece or securely fastened butt and blade for stable reference
• Intended use: woodworking, joinery, carpentry and furniture making

How to use

Place the butt of the try square firmly against the edge or face of the workpiece so the blade lies flat on the surface to be checked or marked. Sight along the blade to confirm squareness and use a sharp pencil or marking knife against the blade edge to transfer the line. For measuring short distances, use the blade length as a straightedge and combine with a rule or tape where longer measurements are required. Verify the tool's accuracy occasionally by checking it against a known square or a precision surface to ensure consistent results.

Usage recommendations

Store the square in a dry place and protect the blade from knocks and corrosion. Clean metal surfaces after use and apply light oil if the tool will be stored for an extended period. Avoid using the try square as a pry bar or striking tool to maintain the integrity of the 90° reference.