Fire Door Gap Gauge,1-15 mm Precise Wedge Door Gap Measuring Tool,Durable Functional Engineering Ruler,Feeler Gauges for House Engineering Inspection Flatness Measuring Tool Ruler (0.5mm)
£5.49Accurate Gap Measurement (1–15 mm) – Designed with a precision wedge shape ranging from 1 to 15 mm, this tool allows for accurate measurement of door gaps, floor clearances, and fire door compliance.