Sealey AK28 Metric/Imperial Nut & Bolt Thread Checker

SIMPLE - With 14 Imperial and 14 Metric sizes, this Thread Checker accommodates a wide range of common nut, bolt, and screw sizes, making it very versatile.
PRECISE - Designed to accurately identify and measure threads, ensuring you select the right fastener every time, whether you are working with fine or coarse threads.
DURABLE - Made from a premium alloy, the Thread Checker will give long lasting performance.
PORTABLE - Lightweight and compact.
USER FRIENDLY - Clearly labelled with easy-to-read markings, male and female versions of each size are easy to identify.
INCLUDES - Length checker on either side of board - one edge is metric and the other is imperial.
SIZES: Imperial; 6-32C to 1/2-20F, Metric; M4-0.7, M5-0.8, M6-1.0, M7-1.0, M8-1.0, M8-1.25, M10-1.0, M10-1.25, M10-1.5, M12-1.25, M12-1.5, M12-1.75, M14- 1.5, M14- 2.0