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Old 08-12-2004, 11:25 PM   #1 (permalink)
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steel question

A buddy of mine is looking for some steel to make single jack bits out of.

he wants Carbon 86 1" hex steel (is more info needed??)

I need a source and cost.

help??
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Old 08-13-2004, 04:52 AM   #2 (permalink)
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Machine shops should carry that steel We always had to get nuts made for or 30 station rollformers and they have always had it in stock and ready to go...
good luck
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Old 08-13-2004, 07:07 AM   #3 (permalink)
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What are single jack bits ?
I have about 6' of 1018 1" hex laying around .
How much you need .
If it is just a small piece , just pay shipping and you can have it .
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Old 08-30-2004, 05:29 PM   #4 (permalink)
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Single jack is an old fashioned way of drilling through rock.

Think of taking a chisel and beating on it with a BFH enough to drill a hole in a rock.

I cannot find anywhere that even can think of what carbon 86 is.

Todd, do you have a refrence for the material?
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THANK YOU FOR YOUR RECENT ORDER FROM OUR SEX TOYS WEBSITE.

YOU'VE REQUESTED THE LARGE RED VIBRATOR AS FEATURED ON OUR WALL DISPLAY.

PLEASE SELECT ANOTHER ITEM.

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Old 08-30-2004, 06:38 PM   #5 (permalink)
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How about some nickle R405?

www.onlinemetals.com
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Old 08-30-2004, 07:35 PM   #6 (permalink)
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First off, is carbon 86 anything like 1086, .86% carbon? Maybe just maybe?

Second off, I've done some of that there hand drilling into rock. In a previous life I was a rock climber and I did a whole bunch of big walls and first ascents and I've put about 100 holes in a variety of rock from mudstone to gneiss, but these are 3/8" holes we're talking about. For 1" holes, he's going to hate it if he's going down any distance whatsoever - the pilot hole alone with a handdrill will take hours. I used to get silly arm drilling a 2 bolt (or pin) anchor in sandstone, and although I'm admittedly not fresh when I started those holes, holy shit did it work me.

Moto grips on the stock will be good handles, if you can find em for a 1" bar, and just like for their intended use, put em on with Aquanet. I'd also advocate a huge striking surface with a long neck on it, since two factors will come into play with this:
a) he'll have to WHALE on that hammer, and accuracy goes down with force
b) the mushroom on the head will eventually throw some chips off at light speed if he doesn't watch it.

Man, your bud is going to hate it, and so is any partner he goat ropes into the hammer path. Why can't he get a portable electric or gas SDS drill? Is this some weird retro mining thing?

Bob
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Old 08-30-2004, 08:25 PM   #7 (permalink)
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Bob, yep this is a mining competition thing.
Typically they use 4lb hammers and specific drills. Good guys can get over 6" into solid rock in 10 mins.. They scream...

Here are some rules.
http://www.mackay.unr.edu/mining/rules.html

Honestly, I have no idea if Carbon 86 is 1086. If it is I at least have somewhere to start.
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DEAR MADAM:

THANK YOU FOR YOUR RECENT ORDER FROM OUR SEX TOYS WEBSITE.

YOU'VE REQUESTED THE LARGE RED VIBRATOR AS FEATURED ON OUR WALL DISPLAY.

PLEASE SELECT ANOTHER ITEM.

THAT'S OUR FIRE EXTINGUISHER
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