Carefully crafted from high quality tool steel, these squares are accurate to BS939 Grade B standard.
Stock and blade are precision ground to ensure straightness and accuracy.
Spring steel blade is hardened and tempered for increased durability.
Size: 75mm (3in)
External size: 95 x 60mm
Internal size: 75 x 41.5mm
Stock thickness: 8.5mm
Blade thickness: 1.7mm