Clarke ET110 Machinists Steel Square (150mm) Description An engineers means to accurately check the right angle. £15.57 In stock Clarke ET110 Machinists Steel Square (150mm) quantity Add to basket EAN: N/A SKU: 1700150 Category: Engineering Hand Tools - Measuring Equipment Description Specification 6″ blade is hardened, tempered and polished. Both beam and blade are ground for straightness and parallelism. Related products Clarke CM170 Combination Square Set £52.98 Clarke ET153 – 3 Piece Spring Caliper Set £24.04 Clarke CM110 Vernier Caliper £22.62 Clarke CM150 Dial Caliper £26.16