52 Piece Nut and Bolt Thread Checker Set

Product Highlights

• [Metric and imperial range] Includes 28 Imperial gauges (#2-56, #4-40, #6-32, #6-40, #8-32, #10-24, #10-32, #12-24, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20, 9/16-12, 9/16-18, 5/8-11, 5/8-18, 3/4-10, 3/4-16, 7/8-9, 7/8-14, 1-8, 1-12) and 24 Metric gauges (M2-0.4, M2.5-0.45, M3-0.5, 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, M12-1.0, M12-1.25, M12-1.5, M12-1.75, M14-1.5, M14-2.0, M16-1.5, M16-2.0, M18-1.5, M18-2.5, M20-1.5, M20-2.5), with individual gauges for each listed size.
• [Removable gauges] Each thread checker can be taken out of the box and used separately when identifying nuts, bolts or screws, including fasteners in confined or hard-to-reach locations.
• [Clearly marked sizes] Imperial gauges are blue and metric gauges are red, with engraved size markings on each piece to help distinguish the two systems when selecting a matching gauge.
• [Three size references] Find the required thread size using the markings engraved on the gauge, the labels on the foam insert or the size guide inside the box lid before checking a fastener.
• [Aluminium gauges and case] The 52 aluminium alloy gauges come in a blow-moulded storage box, keeping the components together between workshop or DIY tasks.