Set-Screw V-Socket Hand Tap T-Wrench
A 120 mm T-handle tap wrench. The tap shank sits in a through-socket shaped as a 7 mm square turned 45°, and an M5 set screw running through a captured M5 nut pushes it into the V corner, so it grips round or square shanks from about 2.5 mm to 7 mm (small taps, reamers, screw extractors). It replaces the tap wrench that went missing from a cheap tap-and-die set, and the twist load stays flat in the print plane so it doesn't pull the layers apart.
tool tap-wrench threading m5