TOLEDO Engineering Square Spring Steel Graduated Metric 100mm SSA4G - Hardened, Riveted, BS 939

Engineering square with graduated Metric measurements, 100 mm in length. Constructed in hardened Spring Steel, with a lapped finish for increased accuracy, the blade is permanently fixed into the steel stock at 90° with self-locking rivets. Constructed in accordance with BS 939 Grade B specifications, for general use within engineering and carpentry.