When one of the guys that used to work in the IT department left, he also left tools. Lots of tools... that is another story altogether. However, one thing that he did leave was a screwdriver set that uses the short screwdriver bits that you can buy anywhere. It is short, and is fitted for the hand. I can get it under the machine head to remove the screws on the sole plate so I can clean out the dust bunnies that live under the bobbin case.