Questions tagged [drillbit]

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2
votes
3answers
88 views

How can I drill out broken black oxide bit?

I am trying to drill out a lug on my old Dakota pickup truck. The cap came off the lug nut. I tried a nut extractor which basically carved the bolt into a nice circle. My next option was to drill ...
2
votes
1answer
80 views

The purpose of this steel ball on the hex key of my drill attachment

I got this right angle attachment for my drill. On it's hex key, there is a steel ball. What is it's purpose? As I can't find a hex bit that has a hole for this ball to lock into -- though I can find ...
15
votes
1answer
9k views

Safe way to drill through the engine bay firewall

I need to run cables through my firewall (the wall between the engine bay and the seating area) but I can't seem to find any factory placed holes to pull cables through. Now a lot of people told me ...
17
votes
5answers
17k views

How do I remove a broken drill bit from metal?

I was building a mount for my custom bobber. My 1/4" carbide drill bit broke off into 3/4" plate of steel. How do I remove it?