The Sealey 150mm Precision Steel Square (Model AK11150) offers an extended blade length for measuring and checking larger components and workpieces. This versatile size strikes an excellent balance between portability and functionality, making it suitable for a wide range of engineering, fabrication and machining applications where greater reach is required. Constructed from quality solid steel, this engineer's square has been hardened, tempered and precision polished to maintain dimensional accuracy under regular workshop use. The blade edges and stock face are manufactured to within ±0.016mm tolerance, delivering the precision necessary for quality control and layout work on medium to larger components. The 150mm blade provides sufficient reach for checking flatness and squareness across wider surfaces. Protected by Sealey's lifetime guarantee, this precision square is a dependable addition to any professional toolkit. Features and Benefits:150mm size suitable for larger component