1、Careful processing of the surface of ruler reduces errors and makes the measurement more accurate. 2、The ruler body is thickened to increase the contact area and the measurement is more stable. 3、One‑piece structure processing endows the ruler with high accuracy, high quality, no breakage and longer service life. 4、The groove milled out of the inner corner can remove burrs and chips, making cleaning easier. 5、Knife edge ruler is widely used in construction, woodworking, guide rails, machine tools, accuracy parts. Item Type: L‑Shaped Square Ruler Material: Stainless steel Product Size (Length x Width): Approx. 125x80mm / 4.9x3.1in Thickness: Approx. 5.5mm / 0.2in Purpose: Suitable for detecting angles and marking on parts 1 x L‑Shaped Square Ruler