I have been collecting, using and restoring "Yankee" style push drills/ screwdrivers and "Western" style hand saws for many years. How can I help you with yours? I have many to sell or would swap for or buy yours? Also can custom make or have bit adapters so you do not have to try and find the old style drill and screwdriver bits. I also have many original bits if you want to go that route. Could clean, repair or restore your sentimental heirlooms too. If you're looking for a rare collectable, a user or a wall hanger I've got you covered. EXTRA: I have recently acquired a limited number of Brand New china copies of the mid size yankee ( similar to #6 photo) these have a 1/4" hex chucks, I've been testing one of these for a while and it works amazingly well. Similar models sell on aliexpress and amazon for $40-$60. I am able to sell them for $35. I don't think one of these will last 100 years like the originals but would not be surprised if they lasted 50 with proper maintenance. Note: photos are for examples only! tools shown may or may not still be available