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 Post subject: Drill Press Chuck
PostPosted: Sat Jun 27, 2015 3:33 pm 
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Location: Kerrville, Texas USA
I want to replace the stock chuck that came with my Delta drill press and would like
suggestions and/or recommendations.
I recognize Jacobs but do not know any other brands.
All are welcome.

Duan

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 Post subject: Re: Drill Press Chuck
PostPosted: Sun Jun 28, 2015 6:22 am 
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"Jacobs" refers to one type of taper. http://www.newmantools.com/tech/taper.htm So it depends on how much you want to change with the new one. Only thing I'd be concerned about is getting one that is similarly sized and uses the same key.

The Morse is on the left, fits into the quill. Jacobs on the right, into the chuck proper. http://drillsandcutters.com/2mt-taper-s ... uck-arbor/


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 Post subject: Re: Drill Press Chuck
PostPosted: Sun Jun 28, 2015 11:50 am 
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Location: Rolling Meadows, IL. USA
Why do you need to replace your chuck?

I had a small cheap Delta drill press.
When I picked up chuck was rusty and replaced it with one from Harbor Freight (item#42340).
It worked quite well for the time that I used it ended up replacing the drill press, I needed one with a longer stroke.

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 Post subject: Re: Drill Press Chuck
PostPosted: Sun Jun 28, 2015 4:50 pm 
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Location: Kerrville, Texas USA
I have two difficulties.
1, Chuck will not tighten enough to hold larger drill bits >1 inch.
2, Chuck key slips on one location and will slip when tightening enough for #1.

So I want to change the chuck.

Duan

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 Post subject: Re: Drill Press Chuck
PostPosted: Thu Jul 02, 2015 2:19 pm 
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Location: Swede
at home I bought an Asian chuck, keyless. MK2 b16 13 mm.
At school I have Metabo, Rohm and Kawazaki. Same sizes. The expensive ones manage the use and abuse of teenagers and have last 5 years of daily use. When the teeth gets worn its hard to get a good grip. In Sweden an Asian chuck costs around 40 USD. A German or Japanese 3 times that.
/Anders


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 Post subject: Re: Drill Press Chuck
PostPosted: Fri Jul 03, 2015 4:16 pm 
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Location: Kerrville, Texas USA
OK, Went looking and found two chuck keys for less than $5.00 each
and both work better than the OEM key with one working better than
the other. So looks like I will try the new key for a while.

Thanks for the interest.

Duan

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 Post subject: Re: Drill Press Chuck
PostPosted: Sat Jul 04, 2015 2:37 am 
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Han the key in a elastic band and secure that to the pillar. make sure that it is so short that you cant forget it in the chuck when drill is started. Its much safer that way an you wont loose so meny keys...


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 Post subject: Re: Drill Press Chuck
PostPosted: Mon Jul 06, 2015 8:21 am 
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andersjustincase wrote:
Han the key in a elastic band and secure that to the pillar. make sure that it is so short that you cant forget it in the chuck when drill is started. Its much safer that way an you wont loose so meny keys...


I use a rare earth magnet to keep the key on the drill press. Sometimes the magnet stays on the drill press. Other times it comes off with the key. Either way, it is easy to put it back on the drill press when I'm finished.

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 Post subject: Re: Drill Press Chuck
PostPosted: Wed Jul 08, 2015 9:05 pm 
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Hey Duan,

A little late to add my 2ยข perhaps, but I agree that the chucks provided on Delta presses are CRUD. I have a relatively new Delta X5 press, and I replaced the chuck with a Eastern European keyless chuck that I bought on eBay. It works exceptionally well, and is very smooth and easy to use. It was a fraction of the cost of a Jacobs brand chuck (over $200), and I am very satisfied with it.

Cheers,
Tom

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 Post subject: Re: Drill Press Chuck
PostPosted: Sat Jul 11, 2015 3:37 pm 
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Tom, more details please.
Does the Delta chuck have a Morse taper or does it screw on to the mounting taper?
Not clear I know but I am unsure of how the chuck itself fastens to the press and don't want
to tear something up without knowing what will happen.
Also I understand keyless but does it hold bigger (2 inch fostner) bits ie not slipping?

Thanks
Duan

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 Post subject: Re: Drill Press Chuck
PostPosted: Sat Jul 11, 2015 3:49 pm 
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Hey Duan,

The chuck is a Morris Taper #3 (MT3). You should use a proper extraction wedge to remove the old one, but I have been guilty of using a large screw driver.
A good keyless chuck will hold anything that you could safely put into it. I have used a 6" diameter fly cutter in it, but would rather not do that again.

Cheers,
Tom

ps. Actually, the more I think of it, it probably has a Jacobs Taper (JT3). Once you've pulled it out you can have it checked.

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 Post subject: Re: Drill Press Chuck
PostPosted: Sat Jul 11, 2015 6:10 pm 
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The Morris taper is held to the drill press by friction only. If you crank the drill press down with your right hand and look at the shaft that extends out if the press, you will see a vertical slot about 3/8" wide and 1-1/4" long cut into it. Now with your left hand turn the chuck slowly and all of a sudden you will see light where the slot goes all the way through the shaft. Part of it will be blocked by the Morris taper and the open hole is where you drive the wedge (or in Toms case a screwdriver. :) ) and it really doesn't take much effort to pop it out. Just be careful and catch the chuck and not let it drop on the floor (or worse your foot) .
In my case, the drill chick is held to the Morris taper by another taper in the reverse direction however I have seen them held either threads or a heavy screw up through the chuck into the end of the taper piece.
Here is where you may run into trouble....First of all, those are LEFT HANDED THREADS! Don't forget that! Second, they are usually over tightened by the last guy or corroded from time and humidity and even lock-tite and don't want to let go.
For those instances (and this works on hand drills also that are defiantly threaded) use an IMPACT WRENCH to break them loose. An air powered or electric impact wrench is the easiest and quickest method for drill chuck removal in ANY case. You can use one of those hammer powered type of impact screwdrivers also but, they are not as labor friendly. :wink:
In the case of a screw up through the chuck, (usually found on reversible drills) select the proper driver (straight, Philips, hex and I've even seen torx style used on some of the newer drills) and chuck it up in the impact driver (of your choice) using a socket that fits the hex end of the bit. Put the impact driver in FORWARD, stick the bit down into the center of the chuck engage the bit into the screw, push down hard and HIT THE TRIGGER! That sucker will jump out so fast you won't believe it!
In the case of the chuck being threaded to the shaft of the drill, Use a 3/8" or larger hex bit in a socket style hex driver and chuck it up to the drill chuck nice and snug, engage the impact driver to the socket and follow the above steps for instant removal of a drill chuck from the drill.

GUANRANTEED!

If that doesn't work, call someone who cares. :-D :D :-D

Rog

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 Post subject: Re: Drill Press Chuck
PostPosted: Tue Jul 14, 2015 9:25 am 
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Location: Kerrville, Texas USA
Want to thank all who have replied, offered suggestions,
and made comments. All have helped.

Thanks.

Duan

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