Features: Quickly identify bolt size and thread gauges with the Metal Nut and Bolt Identification Tool, essential for hardware enthusiasts and DIY projects. Make from quality aluminum and hardness tool steel, this tool for accurate measurements and a anodized finish. Suitable for DIYers, engineers, and hobbyists needing precise screw and bolt measurements in standard and metric size. Perfect for workshops, garages, and home repairs, providing precise identification of bolt lengths and screw size without the need for guesswork. Improve your hardware tasks with the Metal Nut and Bolt Identification Tool, a reliable tool for all your measurement needs. Specifications: Material: Aluminum Size: About. 10x15x5cm/3.94x5.91x1.97in Color: Black/Redness Package Includes: 1x Nut and Bolt Thread Checker note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the items actual color.