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 ET156 – 3″ Feeler Gauge £16.98 Clarke CM145 Digital Vernier Caliper £29.66 Clarke CM250 Measuring Set £43.78 Clarke PRO325 24†Breaker Bar – 1/2†Drive £25.45