Set of 10 M7 nuts + shank diameter 4.2 Can be used with twist drill as a mini hand drill to drill holes in ABS panels, aluminum sheets, cardboard. Compatible with most rotary tools for hardware, hobby, household, etc. Suitable for the installation of drills, electric grinders, hanging grinders, etc. The pliers can be used with a twist drill as a mini hand drill to punch holes in ABS panels, aluminum sheets, cardboard. Brand new and high quality. Small size, easy to carry.