Your Yankee screwdriver sits in the drawer collecting dust. You’d use it more, but it’s missing most of the special bits. Buying a new one is expensive, and so is buying the bits — if you can actually find someplace that sells them separately. There’s another option: head on over to Lee Valley Tools and spend $6 to make your Yankee screwdriver more versatile than ever with a hex adapter.
The hex adapter accepts 1/4″ hex bits, which includes many drill bits. The collar slides back to insert a bit and forward to lock it into place. The built-in rare-earth magnet holds ferrous screws for easy one hand operation.
Lee Valley sells three different hex adapters made to fit common Yankee screwdrivers: a 7/32″ (5.5mm) shaft adapter, a 9/32″ (7mm) shaft adapter, and a 5/16″ (8mm) shaft adapter. Now you can take that old Yankee screwdriver out of the drawer and put it to good use again.
Hex Adapter [Lee Valley]