Number 2 Robertson Scrulox / square drive screwdriver.
RED HANDLE - the colour indicates the size, so you can quickly identify the driver you need from the rest of the stuff in your toolbox.
Very popular with tradesmen.
This screwdriver suits number 8-10 screws (the most popular sizes).
Robertson screwdrivers are easy to use one-handed, because the tapered socket tends to retain the screw, even if it is shaken.
We keep the screws to match the screwdriver.