A nut driver is a tool that features a socket on a screwdriver-style handle. The socket can be fixed or removable.
Typical applications
- A nut driver fits a socket over a matching nut. It differs from a hex driver, which fits inside a recessed hexagonal screw head.
Advantages
- Nut drivers combine a socket with a screwdriver-style handle. Some sockets are fixed and others snap onto the handle.
Specifications to check
- Choose the correct socket size for the fastener. Metric and SAE fastener sizes require the matching tool.
Limitations
- Do not use this nut driver on moving machinery, and do not extend its handle with a pipe for extra leverage.
Buying considerations
Select the correct type and size for the fastener. Do not use a damaged wrench or one with a bent handle.
Safety & limits
- Use eye protection where flying particles or falling debris are a hazard. A face shield must be worn with safety glasses or goggles.
Sources & further reading
These links document the information used in this article. Manufacturer specifications and source research are not hands-on test results or an endorsement of a purchase.
- CCOHS: Nut driver
Reference checked 2026-10-29