Carefully crafted from high quality tool steel, these squares are accurate to BS939 Grade B standard. The stock and blade are precision ground to ensure straightness and accuracy, and the spring steel blade is hardened and tempered for increased durability. Features: Blade hardened and tempered for durability Precision ground to BS standard Grade B workshop accuracy Precision ground to BS standard Grade B workshop accuracy Specifications: Dimensions: H:32.8 x W:2.6 x D:19.7 cm Colour: Silver Guarantee:5 years Material: Steel Model Number: FAIES9