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Mibro quick start drill bits from Tractor Supply are garbage.
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Bosch bits are about as good a consumer bit as you can buy. My buddy gets me some once in a while from his supplier (he works in a machine shop)
Also, a Drill Doctor is a worthy investment.
I have buckets of drill bits, and when they get dull, I toss them in the “to be sharpened “ bucket.
Once every few months, I’ll sit at the workbench, with a good cigar and a big glass of tea, and sharpen those dull and broken bits (yup, I can grind a new point on a broken bit too)
I went to the woods because I wished to live deliberately...
Henry David Thoreau
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There's a good probability that the T post you have are hardened steel which doesn't help when trying to drill holes in them.
I was taught as a young man how to sharpen drill bits on a grinder, its a little tricky at first but once you figure out how geometries, angles and cutting edges work it's easy.
A side note is that alot of TSC stuff is Chicom %#*%Last edited by sendit; 10-30-2017, 08:37 PM.
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Originally posted by ramrod View PostDon't run them at a high RPM in your cordless drill.Originally posted by Goldeneagle View PostYep. Good chance you ran too many RPM's.
I bought two bits there and one was that one and the other one was the Cobalt variety, same brand. It was a $4 bit the one that got dull was like a dollar fifty. I ended up drilling plenty holes with the more expensive one with no problem.
I was trying to match a screw size and the 3/8 was the cheaper one and the 17/64 s or whatever it was was more expensive one.
I sure wouldn't have guessed that t-posts would be hardened steel though.
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Originally posted by sendit View Post
I was taught as a young man how to sharpen drill bits on a grinder, its a little tricky at first but once you figure out how geometries, angles and cutting edges work it's easy.
A side note is that alot of TSC stuff is Chicom %#*%
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Originally posted by Gummi Bear View PostBosch bits are about as good a consumer bit as you can buy.
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Originally posted by Brute Killer View PostI know how a drill works.
I bought two bits there and one was that one and the other one was the Cobalt variety, same brand. It was a $4 bit the one that got dull was like a dollar fifty. I ended up drilling plenty holes with the more expensive one with no problem.
I was trying to match a screw size and the 3/8 was the cheaper one and the 17/64 s or whatever it was was more expensive one.
I sure wouldn't have guessed that t-posts would be hardened steel though.
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