There are a few accessories that are compatible with many utility and control-cabinet keys. Some come with the key while others can be bought separately.
The two-way or reversible bit suitable for a utility and control-cabinet key is a short (usually about 40mm [1.5″] long), standard ¼” sized hexagonally-shafted screwdriver bit …
…that has a slot head on one end…
…and a size 2 Phillips (PH) head on the other.
Many utility and control-cabinet keys have a profile which will fit a standard ¼” bit, allowing the key to be used as a small screwdriver.
Bits can often be attached by a chain to the key and on some models there is a space in the body of the tool to keep the bit safe.
Some utility and control-cabinet keys do not have a profile that will fit a screwdriver bit. An accessory part is sometimes supplied with the key to convert an existing profile into a hexagon socket for a bit. Both these attachments and hexagon sockets in a key are called ‘bit adaptors’ by different manufacturers so check which one they are referring to.
Bit adapter attachments are usually made of plastic and have two profiles: a square pin to fit into one of the square sockets on the utility and control-cabinet key and a ¼” hexagon socket to fit a ¼” bit into. This allows the key to be used as a screwdriver.
Securing chain and clips
Chains or clips can be used to attach utility and control-cabinet keys to a belt, each other or to other key accessories like a bit or adaptor.
Chains can be made of linked chain, ball chain or twisted wire.
Some utility and control-cabinet keys have built-in clips but a dog or snap clip can easily be added to a securing chain. Both chains and clips are readily available to purchase separately.