Experience unparalleled precision with the Moore & Wright 4009 Engineer's Square Grade B, an essential measuring tool for engineers and DIY enthusiasts alike. This 225mm (9 inches) square is expertly designed for reliability and accuracy, featuring a robust blade size of 273.1 x 38.1mm. The stock size measures 139.7 x 38.1mm, with an inner working dimension of 107.9 x 234.95mm, making it perfect for checking right angles and ensuring your projects are flawlessly aligned. Housed in retail packaging, this durable engineer's square is built to withstand the rigors of daily use while providing clear and precise measurements. Elevate your craftsmanship and trust your work with the Moore & Wright 4009 Engineer's Square - the perfect companion for any professional or hobbyist.