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 CM100 Vernier Caliper £19.10 Clarke CM145 Digital Vernier Caliper £29.66 Clarke CHT614 406mm (16″) Combination Square £24.75 Clarke ET151 Steel Machinist Square (250mm) £28.98