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CRAFTSMAN Nut Drivers & Keys

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Nut Drivers, Hex Keys and Torx Wrenches for Projects

Nut drivers, hex key sets and Torx wrenches are vital components for any set of hand tools.


Torx wrenches work on fasteners with a six-point star-shaped drive socket. The six points help to keep you from stripping the screw head and reduce the likelihood of the tool slipping off of the fastener head, an issue known as camming out.


Hex keys, or Allen keys, function like Torx keys in that they fit in a drive socket on the fastener head, but a hex key fits fasteners with a hexagonal socket.


Frequently Asked Questions


Q: What does a nut driver do?

A: A nut driver functions like a screwdriver to loosen or tighten fasteners. The head on a nut driver fits over the fastener rather than fitting into a slot or socket as a screwdriver head would. Keeping a selection of nut drivers handy will allow you to work with fasteners that screwdrivers can’t turn.


Q: What’s the difference between a screwdriver and a nut driver?

A: A screwdriver fits into a slot or socket on a screw head, while a nut fits over a nut or bolt to engage the drive surfaces on the outside of the fastener head. A nut driver may have a hollow handle so that the shaft of a bolt can fit into the handle as you turn the nut.


Q: What are the uses for a Torx wrench?

A: A Torx wrench — which people also may call a Torx fastener, bit or key — can tighten screws with a star-shaped drive socket. You’ll most often find Torx screws on cars and motorcycles, as well as on computers and other electronics.