Quote:
Originally Posted by Puretexan
wow lots of things learned on one post. I never thought about drilling a hole and then broaching a slot out of it. Must have been the way they did the safety slot. Bet they were some serious machinists for the time.
Paul
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Broaching is about the only way to get a slot with a "square" end, or a square hole.
Of course now-a-days "they" do all kinds of neat stuff with a wire EDM cutter, or water , or a laser.