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Old 04-30-2011, 09:17 PM
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spot cutter idea

why hasn't anyone made a bit you can put in a drill with a sleeve around it to stop it at a certain depth? Doesn't that make sense. They can have a bit for differing gauges. I dunno, just seems like it would work and be easy to design and not have to cost $300. Thoughts?
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Old 05-01-2011, 07:05 AM
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I have a set of different diameter drill stops that would do the same thing and would work on my spot weld bits. Don't waste the time installing one.


Trees
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Old 05-01-2011, 10:41 AM
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I have put a piece of tubing over the bit to limit depth. Of course the absolute best thing in my opinion for drilling out spot welds is a Spitsnagle spot weld drill which has a depth setting control so you can adjust the depth any time you want. The pink colored collar rotates to change the depth of the cut.

Brian

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Old 05-01-2011, 11:10 AM
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wanna sell it? Didn't think so.
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Old 05-09-2011, 07:19 AM
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Quote:
Originally Posted by tech69
why hasn't anyone made a bit you can put in a drill with a sleeve around it to stop it at a certain depth? Doesn't that make sense. They can have a bit for differing gauges. I dunno, just seems like it would work and be easy to design and not have to cost $300. Thoughts?
Chuck up your bit, then cut a piece of steel or copper tubing slightly larger than your bit to the approximate length needed to fit up against the chuck jaws.
Make the length of the tubing within 1/8" of the exposed drill bit.

Loosen the chuck slightly and adjust the stick out of the drill bit through the tubing while maintaining contact between the chuck jaws and the tubing.

Once you are satisfied with the stick out when the chuck is re-tightened then remove the tubing.

Add a dab of silicone into the tubing and slide back over the bit.

Make sure the tubing is tight against the chuck jaws and the bit is still sticking out the proper distance.

The silicone will keep the tubing from falling off the bit when in use.
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