Help with drill press chuck

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Forum topic by Sigo posted 04-03-2013 06:25 AM 3635 views 0 times favorited 14 replies Add to Favorites Watch
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17 posts in 1950 days

04-03-2013 06:25 AM

Topic tags/keywords: drill press question

Just purchased a Central Machinery Drill Press. I’ve got a little more runout than I’d like (.085”). The arbor has very little runout (.0005”). The chuck says 5/8 JT3. What other information do I need to order a better chuck and is there one you’d recommend?

14 replies so far

View runswithscissors's profile


2768 posts in 2054 days

#1 posted 04-03-2013 07:32 AM

I like Grizzly’s keyless chucks on my dp. I think they grip the drill as well and I don’t have to hunt down the key.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View huff's profile


2828 posts in 3314 days

#2 posted 04-03-2013 11:38 AM


You could check out this company;

They carry all type chucks.

-- John @

View Kreegan's profile


1452 posts in 2175 days

#3 posted 04-03-2013 12:01 PM

View JustJoe's profile


1554 posts in 2067 days

#4 posted 04-03-2013 01:15 PM

You’ve got the info you need – the taper is JT3 the max size is 5/8. Anything with a JT3 taper will fit, the max size is personal preference based on how fat a drill shank you want to be able to use.
It’s hard to recommend a brand because of where you’re putting it – good chucks aren’t cheap or even moderately priced and a high-end chuck on a low-medium tool is just putting fancy rims or fuzzy dice on a Pinto. The Rohm and “new” Jacobs chucks have been known to slip but they are inexpensive and runout isn’t too bad. Albrecht chucks are super high quality but cost more than the drill press you’d want to put them on.
EDIT: You might also try taking a taper tool and knocking the chuck out, wiping it all down with a clean rag and reseating it to see if that improves runout.

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View shampeon's profile


1775 posts in 2212 days

#5 posted 04-03-2013 03:44 PM

I’ve got one of the Victornet keyless JT3 chucks, and it’s worked well, especially for the price. I think the runout was measured at 0.006. The only thing I don’t like is the minimum size of 1/8”.

It seems like there’s a gulf between the import chucks (less than $50) to the name-brand ($150 or more) chucks.

-- ian | "You can't stop what's coming. It ain't all waiting on you. That's vanity."

View Fred Hargis's profile

Fred Hargis

5002 posts in 2522 days

#6 posted 04-03-2013 03:51 PM

Yep, I’ve been wanting to replace the one on my Delta DP…the Jacobs USA chucks are really expensive. Can’t decide whether to save a few more sheckels and get one, or just go with another import. You might check e-bay, I was able to get a really good Jacobs 1/2” for my lathe (arbor and all) for $30. I haven’t seen any 5/8” used ones show up there, tho.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Airspeed's profile


445 posts in 1931 days

#7 posted 04-03-2013 03:53 PM

I put a Grizzly keyless chuck on mine four years ago and it still works great, holds any bit very tight. The only downside is its a little longer than my old keyed chuck.


View lumberjoe's profile


2899 posts in 2277 days

#8 posted 04-03-2013 04:43 PM

Maybe I got lucky. I’ve got the 38144 16 speed floor drill press. I’ve never measured for run out because I haven’t had a problem. I just went out and measured and I have .003 – which I think is very acceptable.

I turn a lot of pens and would definitely notice a lot of run out. Most of the holes are 2 to 3” deep. They need to be exact all the way through or the brass tubes for the pens would have a lot of play. With good (whiteside) drill bits, I often have to tap the tubes in with a mallet after applying CA.


View Sigo's profile


17 posts in 1950 days

#9 posted 04-04-2013 01:44 AM

Thanks for all of the replies. I did try to reseat the chuck several times, rotating it a quarter turn each time. Best I could get was .008” when measuring with a 1/2 inch bit just below the chuck. Runout on the arbor was about .0005”.

View MNgary's profile


301 posts in 2446 days

#10 posted 04-04-2013 03:43 AM

+1 for JustJoe.

-- I dream of a world where a duck can cross the road and no one asks why.

View Sigo's profile


17 posts in 1950 days

#11 posted 04-23-2013 07:56 PM

Well, to close this out, I ended up returning the drill press for a second one. I ultimately returned the second Central Machinery Drill Press. I just wasn’t happy with the run out on either. To compound my frustration, on the second DP, table wouldn’t move down smoothly. To the credit of HF, they took both back without question. I ended up purchasing the Porter Cable DP and believe it is superior in most every aspect.

View NiteWalker's profile


2737 posts in 2605 days

#12 posted 04-23-2013 08:06 PM

You did good; the pc is a great press for the money, but honestly I’ve never checked my drill press (ridgid 15”) for runout. I haven’t felt the need to. It drills holes where I need, and the resulting hole is the size I need.

I’d only muck with it if I saw visible runout.

-- He who dies with the most tools... dies with the emptiest wallet.

View jacquesr's profile


342 posts in 1452 days

#13 posted 01-28-2015 01:31 AM

Hi guys – I am in the exact same situation as the OP.
I am planning to buy this:

Anything wrong with my choice?

Thanks for chiming in!

View joey502's profile


537 posts in 1547 days

#14 posted 01-28-2015 02:06 AM

I do not have an issue with runout but I do hate my delta keyed chuck. I have been looking at the grizzly above and one from penn st. Does any experience with the Penn state?

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