Laser-Etched Markings for Easy Reading All size markings on the nut and bolt thread gauge are laser-etched for high accuracy and clarity. The permanent markings wont wear off, ensuring long-lasting readability and reliable use.
Space-Saving & Versatile Design The bolt size finder features two holes on top for easy wall hanging and includes four magnetic screw bases that attach to metal surfaces or used as a base on workbench. Ideal for repair technicians, professionals, and DIY enthusiasts.