The Sealey 26 Piece Nut and Bolt Thread Checking Gauge Set is a comprehensive thread identification tool designed for precise measurement of both metric and imperial fasteners. This thread gauge set provides tradespeople with rapid identification of nut and bolt thread pitches across a wide range of common sizes. The 26-piece configuration includes 14 imperial gauges covering UNC/UNF sizes from 6-32 through to 1/2"-20, alongside 12 metric gauges spanning M4-0.7 to M12-1.75. Each gauge is mounted on a durable wire lanyard for convenient storage and quick access during use. The set features a practical colour-coded system with red beads separating imperial sizes and blue beads indicating metric gauges, allowing for swift identification without confusion. Convenient loops at each end enable the gauges to be hung from toolbox hooks, belts, or workshop storage, keeping them readily accessible when working on machinery maintenance, automotive repairs, or general engineering tasks. Features a