【Easy to Adjust Angle】The angle can be flexibly adjusted by loosening the positioning nut , carpenter scriber marking line ruler can quickly and accurately identifying angles and drawing straight lines , easily meeting diverse needs such as setting oblique angles , drawing radial lines , and marking angles 【Wide Application】The T type carpenter ruler is widely applicable to engineering surveying , drafting design , building construction , handicrafts , and other scenarios . It is a practical tool for craftsmen , designers , and engineers 【Multifunctional Design】Combining a ruler and protractor , woodworking T square ruler supports length measurement from 0-48 cm/0-18 inches and multi angle measurement , completing line marking and angle measurement simultaneously , saving time and effort 【Premium Aluminum Alloy】The body of line scriber measuring tool is made of aluminum alloy , combining lightweight and toughness , wear resistant and deformation resistant 【Easy Read】This scale of line drawing aid ruler is dealing with engraving technology , providing clear and intuitive readings , wear resistant and not easily worn , consistently displaying accurate values in different environments , avoiding visual errors, Manufacturer: PATNFR