Clarke ET135 12″ Engineers Rule Description A standard 300mm Stainless Steel measure for the precision engineer. £12.54 In stock Clarke ET135 12" Engineers Rule quantity Add to basket EAN: 5016086101680 SKU: 1700295 Category: Engineering Hand Tools - Measuring Equipment Description Specification Manufactured from stainless steel Calibrations etched in imperial and metric. Related products Clarke CM220 Dial Test Indicator £23.34 Clarke CM210 Micrometer £19.81 Clarke CM130 Locking Vernier Caliper £22.62 Clarke ET134 6″ Pocket Rule £10.49