Some cordless screwdrivers have a hinged handle which allows you to change the position of the chuck to suit the space you’re working in.
A hinged handle allows a cordless screwdriver to be put into two different positions:
Pistol grip
In-line
Once the screwdriver is in one of these positions, the hinged handle can be ‘locked’, so it won’t slip out of position while you’re working.
Pistol-grip position
The pistol grip position allows for a more secure grip on the tool. However, it puts more strain on your arm and wrist as the majority of the weight is at the front of the tool.
In-line position
In the in-line position, the screwdriver becomes longer so it can get into awkward or hard to reach areas. The in-line position makes using the spindle lock feature easier.
The spindle lock feature locks the metal bit and allows you to use the cordless screwdriver just like a manual one.