Tonight a new member came through the machine shop and was trying to drill out a 1/2 bolt he had sheared off in a part to his Harley. I offered to help after he had drilled through the bolt with a 1/4 inch bit. We tried to get it out with the bolt extractor set but it wouldn’t budge. So I squared it up on the mill and drilled out a bigger hole. Then I used the boring head and one of the boring bars with the triangular inserts. I was going slow and steady but the inside of the hole had shrapnel from the bolt that was breaking off. Long story short, it grabbed and broke the insert but also bent the tip of the bar.
@TBJK Tim, do you know where we bought those bars. I’ll look into replacing it. It was the smallest of the 3. On a positive note, I did get the bolt out and have a nice little souvenir to boot…