Precision pocket ruler aluminum alloy positioning marking gauge carpenter s mark

features: It is made of top quality aluminum alloy and manufactured by process. It is used for carpentry and T-type track operation - English system and metric system. Accurate and accurate measurement marks Provide highly accurate measurement reference and quick and easy setting of T-frame accessories specifications: Material: aluminum alloy Size: 33x33x1cm Type: 6/8/12 inch Package includes: 1* T-shaped rail ruler. note: Due to manual measurement please allow an error of 0-1cm. Due to the differences between different monitors the picture may not reflect the actual color of the project.