Quote:
Originally Posted by Bob C
12.5mm is .4921 or drill with 31/64" and ream to 1/2".
Bob
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I drilled them to 31/64" and then reamed them. Should work fine. I'm good enough enough with a Mig welder on most things but on this I plan on finding someone to Tig weld them for me.
Used the drill that I have from my great uncle Walt's blacksmith shop in Roca Nebraska. Frame for it is made up from what I think is a Model T frame. The front cross member with the crank hole is at the bottom by the floor.
Converted it to an electric motor with a flat belt as it was originally run off a line shaft.
Still drills nice holes after all these years.