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How to tighten DP chuck w/o key?

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Forum topic by JohnEinNJ posted 964 days ago 991 views 0 times favorited 4 replies Add to Favorites Watch
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JohnEinNJ

84 posts in 984 days


964 days ago

Topic tags/keywords: drill press

I inherited an old drill press with a Ridgid chuck and no key. The chuck is no longer manufactured, and I’ve tried a “universal” key as well as a Jacobs key with the same size pilot (1/4”): no cigar. What’s the best way to tighten the chuck without damaging it? I could do it with big pliers, but that will make nasty scratches in the chuck real quick.


4 replies so far

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SASmith

1577 posts in 1623 days


#1 posted 964 days ago

Have you considered changing the chuck?
Or find a part number on the chuck so you know what key you need.

-- Scott Smith, Southern Illinois

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Grandpa

3107 posts in 1312 days


#2 posted 964 days ago

When all else fails 2 screw drivers will work. Insert a phillips of the correct diameter in the hole on the side of the chuck. Use a common or flat screw driver to inset into the notches and push across the phillips shank. A drill bit will work instead of a phillips and you have a selection of diameters. The common screw driver needs to fit the slots in the chuck as well.

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JohnEinNJ

84 posts in 984 days


#3 posted 964 days ago

@SASmith – thanks for the suggestions. I didn’t want to spring for a chuck, and I also worry about damaging the machine trying to figure out how to get the chuck off. The chuck part number hasn’t helped: I tried calling Ridgid, and also looked in Grainger.
@Grandpa – thanks, I’ll try the screwdriver hack!

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TheDane

3747 posts in 2299 days


#4 posted 964 days ago

JohnEinNJ—Chucks aren’t necessarily a high dollar item, and removing/reinstalling is easy … see: http://www.youtube.com/watch?v=KbI_7IHAsyw&feature=player_embedded

Just a guess, but it could be a JT33 … similar to a chuck I have for sale ( http://lacrosse.craigslist.org/tls/2734514002.html ).

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

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