✓70-Piece SAE & Metric Thread Checker Set: Includes 37 inch/SAE sizes and 33 metric sizes for identifying common nuts, bolts and screws. The expanded size selection makes this nut and bolt thread checker useful for checking unknown fasteners, finding replacement hardware and sorting mixed nuts and bolts for garage, workshop, mechanical and home repair projects.
✓Detachable Thread Gauges for Tight Spaces: Each individual gauge can be removed from the storage case, allowing you to take only the size needed when checking threads around machinery, vehicles, appliances or recessed areas. Compared with bulky fixed boards or connected thread checkers, the detachable design is easier to use in narrow and hard-to-reach locations.
✓37 Inch/SAE Sizes Included: 1-8, 1-12, 2-56, 2-64, 3-48, 3-56, 4-40, 4-48, 5-40, 6-32, 6-40, 8-32, 8-36, 10-24, 10-32, 12-24, 12-28, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 7/16-24, 1/2-13, 1/2-20, 9/16-12, 9/16-18, 9/16-20, 5/8-11, 5/8-18, 3/4-10, 3/4-16, 7/8-9 and 7/8-14.
✓33 Metric Sizes Included: M2x0.4, M3x0.5, M4x0.5, M4x0.7, M5x0.5, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M9x1.25, M10x1.0, M10x1.25, M10x1.5, M11x1.0, M11x1.25, M11x1.5, M12x1.0, M12x1.25, M12x1.5, M12x1.75, M14x1.5, M14x2.0, M16x1.5, M16x2.0, M18x1.5, M18x2.5, M20x1.5, M20x2.5, M22x1.5, M22x2.5, M24x2.0 and M24x3.0.
✓Quick Thread Identification & Organized Storage: Match an unknown nut, bolt or screw with the corresponding gauge to identify thread size and pitch before selecting replacement hardware. The fitted storage case keeps all 70 pieces separated and organized, while the printed size chart helps you quickly locate the needed gauge. Suitable for automotive repair, mechanical work, DIY projects, home maintenance, garages and workshops.