Pre-square for carpentry, metal and aluminum, folding triangle ruler, 310mm multi-function combination square, triangle square, angle ruler, protractor

【Multifunctional Folding Triangle Ruler】: This carpenter's square features a folding speed square and a 6-inch folding extension arm that can accommodate 6-inch or 12-inch layouts. When open, the measuring distance increases. When folded, it reduces storage space, making it easy to carry. It has two units of measurement, metric and imperial, which is more convenient for your measuring habits.

【Adjustable Carpenter's Square Tools】: The triangular ruler can be folded, and the angle can be adjusted. Use the adjustable carpenter's square positioning tool to freely choose the angle. After adjusting to the desired angle, tighten the positioning nut and press the center pull rod for precise positioning.

A variety of measuring functions, suitable for different scenarios.

【High-Quality Material Carpenter's Square】: The carpenter's squares are made of high-quality aluminum alloy, with a matte black finish to prevent reflections, corrosion resistance, and good oxidation resistance; not easy to break.

【Stainless Steel Needle Carpenter's Square】: The internal magnetic ruler can be kept intact, does not easily fall off, and has a long service life. Concealed stainless steel scribing point with a line at the end, screwed and fixed to the ruler body, not easy to fall off and easy to carry.

【Widely Used Speed Square】: Multifunctional folding triangular ruler for woodworking, can draw angles from 45° to 90°, a balance line, a vertical line, and draw an equidistant center point. An adjustable positioning knob ensures all intersection points of the drawn line and the edge are equidistant. For marking slopes, chamfering the ends of roof rafters, and opening up rafter ends.