Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
M3 M4 M5 Rivnut Setting Nut Wrench
This is a 150 x 24 x 12 mm handle for setting rivnuts (threaded inserts for thin sheet metal) with a hardware-store bolt, a hex nut and a washer instead of a $30 setting tool. It has three captive nut sockets: M3 (5.7 mm), M5 (8.2 mm) and M4 (7.2 mm) across flats. Each socket has a clearance bore through the 6 mm floor. To use it, thread the bolt fully into the rivnut and hold the bolt still with a hex key. Then turn the bar so the captive nut drives down onto the washer and collapses the rivnut.
Graduated Eight-Slot Wrench Wall Rack
A 178 mm screw-on wall rack for combination wrenches. It has eight open-front slots that step from 10 mm to 20.5 mm wide, so the shank drops in and the box end rests on top. A 2 mm front lip keeps each wrench from sliding off. The ledge sits on a 45° wedge, so it prints standing upright with no supports, and it hangs from three 4.6 mm holes that take #8 wood screws or M4 screws.