Match the tool to the fastener

There are three ways to mate the tool to the fastener (see illustrations below):

An extension socket with a length from 1/4" to 3" with or without a hex key set-up
A flush style with the hex built into the nose gear with or without a hex key set-up
The hex thru style available without a hex key set-up

Hex driver for UAT socket system

The socket hex is built into the gear of the tool. No socket is used.

Hex runs through nose gear. Hex key spring is not supplied.