M3 And M4 Nut Holding Reach Wrench
A 130 mm double-ended stick for holding a hex nut behind a panel, inside an enclosure or deep in a robot frame while you drive the bolt from the other side. Each 4.5 mm thin head has a snug hex pocket: 5.6 mm across flats for an M3 nut and 7.1 mm for an M4 nut. A clearance hole (3.4 / 4.5 mm) runs through each head so the bolt tip can pass. A 7 mm thick handle gives you something to grip, and a 5 mm hang hole lets it sit on a pegboard.
tool hex-nut m3 m4