Tread Depth Checker Ring RTG2 Analogue Tyre Pressure Gauge & Depth Gauge Tread Depth Gauge Uk Accepted in the UK by the Department of Transport for MOT Testing. The Draper 27298 Tyre Tread Depth Gauge, 1-26mm. Expert Quality, gives fast and easy-to-read measurement of tyre tread depth from 1-26mm in one-millimetre graduations on sliding barrel Plated steel body with pocket clip., Display packed. Expert Quality, gives fast and easy-to-read measurement of tyre tread depth from 1-26mm in one millimetre graduations on sliding barrel Features:Gives fast and easy-to-read measurement of tyre tread depth from 1-26mm in one millimetre graduations on sliding barrel., Includes a 1., 6mm graduation to comply with MoT minimum tyre tread depth requirement. Slippery autumn roads are here... Is your tyre tread safe? The Draper Tyre Tread Depth Gauge is a cheap, accurate way to check your tyres meet the legal minimum and keep you Plated steel body with pocket clip