Sealey Pocket Type Tyre Tread Depth Gauge (TST/DGT)

Chrome steel body with pocket-clip. Colour-coded design, green, yellow and red show different ranges of tyre tread. Green for a healthy tyre (4.76-25.40mm), yellow for replace tyre (2.38-3.97mm) and red for an illegal tyre (0-1.59mm). Gives high accuracy readings in Metric and Imperial. Scale from 0-25mm in 1mm (0-1″ in 1/32″) graduations.