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 ET152 Steel Machinist Square (300mm) £32.51 Clarke CM220 Dial Test Indicator £23.34 Clarke CM130 Locking Vernier Caliper £22.62 Clarke ET151 Steel Machinist Square (250mm) £28.98