8mm nut thumbscrews converted from 3/8 inch nut thumbscrew

thingiverse

This thing, as its name suggests, is a multi-functional thumbscrew designed specifically for use with 8mm nuts. It's actually a miniature version of a standard thumbscrew found in various locations throughout the universe, scaled down to about 38% of its original size. To achieve this reduction in size, designers used computer-aided design (CAD) software to carefully measure and resize the parts, ensuring that all necessary dimensions were maintained while minimizing waste material. The versatility of this device is evident from its multiple uses: it can be employed to secure or remove 8mm nuts with ease. However, when it comes to achieving a precise fit, users must exercise some caution - too loose and the nut may become dislodged; too tight and it may become stuck. To achieve the optimal level of firmness required for the application at hand, one must consider which version of this thumbscrew is best suited to the task. For jobs requiring exceptional holding power, a version that's about 3% smaller than standard (designated as the "0.924" file) is recommended. Conversely, when maximum accessibility and simplicity are necessary, opting for the downsized model that's approximately 8% less massive (filed under the name of "0.92") will ensure a smoother dismounting experience from even the tightest nut fits.