Saturday, March 14, 2026

Another job you may not want to do, boring deep holes with twist drill, 1902

 Modern Shop Practice Vol 1, American Technical Society, 1903

 

1 comment:

Anonymous said...

I'm very familiar with that big-drill swarf, having made a lot of it on lathes - both opening tubes up and doing rough work on solids.

I'd be clearing that lot out from under my feet, though. D.