Clarke ET109 Machinists Steel Square (100mm)£13.67 In stock Clarke ET109 Machinists Steel Square (100mm) quantity Add to basket EAN: N/A SKU: 1700145 Category: Engineering Hand Tools - Measuring Equipment Related products Clarke ET156 – 3″ Feeler Gauge £16.98 Clarke CM210 Micrometer £19.81 Clarke ET153 – 3 Piece Spring Caliper Set £24.04 Clarke CM220 Dial Test Indicator £23.34