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 ET111 Machinists Steel Sqare (200mm) £19.10 Clarke ET134 6″ Pocket Rule £10.49 Clarke ET133 3 Piece Spring Caliper Set £19.81 Clarke CM100 Vernier Caliper £19.10