Getting started with hand tools #3: Replacing MF 5A chuck springs
Ok, this got a bit long. Short version is you can replace the springs on these, they are called compression springs, you just have to find the right outside diameter, free length (no compression on the spring), and compressed length. The right fitting spring for my drill would have been the .14” outside diameter and 61/128” long or about .4765”. My Millers Falls 5A was a pretty decent eggbeater drill, in fact I was surprised how well they work considering they’ve been basically abandoned for electric drills. The problem was the jaws would stick and would require taping on them to get them to open up after you unscrewed the chuck to insert a larger bit. Not to bi...
