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Forum topic by DKV posted 11-15-2013 06:27 PM 765 views 0 times favorited 8 replies Add to Favorites Watch
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DKV

3940 posts in 1965 days


11-15-2013 06:27 PM

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8 replies so far

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JustJoe

1554 posts in 1499 days


#1 posted 11-15-2013 06:35 PM

But he lost a few inches of vertical space now taken up by the part of the 3/8” bolt that sticks out of the old chuck, and the length of the keyless chuck. He’s also increased any runout that was already in his spindle by increasing the distance from the pivot point to the tip of the drill bit. If he wanted a keyless chuck, he could have just removed the old chuck from the DP and installed a keyless.

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casual1carpenter

354 posts in 1936 days


#2 posted 11-15-2013 07:12 PM

My flex shaft sander uses a collet and I wanted to use sanding heads from a drill chuck based system. I had a small machine shop operator thread and turn an arbor. He re-chucked (?) the assembled unit and corrected for runout. It might not be the perfect solution but $30. and a salvage chuck from an old drill as opposed to buying the additional sanding unit I thought was a good option for me.

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DKV

3940 posts in 1965 days


#3 posted 11-15-2013 07:47 PM

JustJoe, how can I measure runout before and after? It is normally in the thousandths…right?

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JustJoe

1554 posts in 1499 days


#4 posted 11-15-2013 08:11 PM

Dial indicator will work, either an old one or a cheap one:
http://littlemachineshop.com/products/product_view.php?ProductID=1593&category=

Just measure the runout with a piece of drill-rod in the original chuck, and then the same drill-rod in the added-on chuck. It should be thousandths,yes, although I once had a 17” Jet that had so much runout you could see the bit wobbling.

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AlaskaGuy

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#5 posted 11-15-2013 08:14 PM

Never had a problem using the keyed chuck.

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a1Jim

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#6 posted 11-16-2013 12:08 AM

I’m trying to figure out why you would not just want a 1/2” keyless chuck in the drill press all the time,just change it out.

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a1Jim

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#7 posted 11-16-2013 12:12 AM

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cutworm

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#8 posted 11-16-2013 12:31 AM

Good video Jim.

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