Slotted screw guide

[mklotz]

If you ever have occasion to use a 6" x 1/8" screwdriver on slotted screws...





you'll appreciate this device to keep the screwdriver from slipping out of the screw slot. (There's a special circle in Hell for the idiots who devised slotted screws.)

It's a very simple lathe job. Slim down the tip of some 1/4" brass, drill through to accommodate the screwdriver shaft and enlarge the business end to fit over the screw head. Cross drill and tap 2-56 for a tiny set screw. (These screws require a 0.035" hex wrench. My handled one is shown in the photo.)





Here it's assembled on the driver.





In use it's extended down over the point to seat around the screw head. Rotate driver until you feel it drop into the slot. Tighten set screw and you're good to go. When not needed, store it on the screwdriver shaft up by the handle.

Although intended for miniature work, the idea is easily extended to larger drivers.