Nut Drivers
Screwdrivers and Bits
Nut drivers grip external hex nuts and studs with a socket at the end of the blade and replace a socket set wherever the work is done single-handed and at low torque. Sizes across flats run from 2.0 to 13 mm, complemented by imperial sizes from 5/64 to 7/32 inch for assemblies built to American standards. Hollow blades accept through-going threaded studs, and insulated versions to IEC 60900 are approved for work up to 1000 V AC. The category holds 36 items from Wiha, Knipex and Proxxon.
| Version | Size across flats | Blade length | Feature |
|---|---|---|---|
| Micro form C 4 | 2.0 to 5.5 mm | 30 mm | precision mechanics and electronics |
| Micro imperial version | 5/64 to 7/32 inch | 30 mm | American sizes across flats |
| Standard blade | 5.5 to 13 mm | 125 mm | nuts in equipment and control cabinet construction |
| Insulated to IEC 60900 | 4.0 to 7.0 mm | 230 to 237 mm | work on live parts up to 1000 V AC |
Typical applications: Hex nuts on terminal strips and busbars; spacer bolts and standoffs on printed circuit boards; screw-locked connectors at housing feed-throughs; nuts on potentiometers and switches during front panel assembly; studs on power semiconductors and heat sinks; work on live terminals using the insulated version.













