SS 3 1/2 Pound 5/8 Keyless Chuck

terrydowning · Post by **terrydowning** » Wed Apr 10, 2013 6:57 pm

[quote="pieceseeker"]Well, I ordered it, so we'll see what it can do. ]

I bet it can cylindrical objects up to 5/8" in diameter.

pieceseeker · Post by **pieceseeker** » Wed Apr 10, 2013 10:04 pm

Just maybe I can run a buffing wheel on a 5/8 shaft with it.

Mike907 · Post by **Mike907** » Thu Apr 11, 2013 12:58 am

I just received mine today, but I must have ordered the light weight version, since it only weighs in at 3 lbs, 2 oz, with the arbor. The chuck is labeled JT3, which I had to google to find is a Jacobs Taper 3, and although there is a threaded hole in the end of the arbor, the chuck only mounts with friction. I haven't had a chance to mount it on the SS, but I chucked up a 5/8ths bowl gouge (measured a true .625 on a digital caliper) and it fits fine. However, if you open the jaws a little farther, the chuck is forced off the arbor taper, so remember to hold on tight when opening the chuck to the maximum.

It does appear to be beautifully made.

Mike

pieceseeker · Post by **pieceseeker** » Thu Apr 11, 2013 6:27 am

Mike907 wrote:I just received mine today, but I must have ordered the light weight version, since it only weighs in at 3 lbs, 2 oz, with the arbor. The chuck is labeled JT3, which I had to google to find is a Jacobs Taper 3, and although there is a threaded hole in the end of the arbor, the chuck only mounts with friction. I haven't had a chance to mount it on the SS, but I chucked up a 5/8ths bowl gouge (measured a true .625 on a digital caliper) and it fits fine. However, if you open the jaws a little farther, the chuck is forced off the arbor taper, so remember to hold on tight when opening the chuck to the maximum.

It does appear to be beautifully made.

Mike

Do you have the ability to check runout? How bout a couple pic's?

Mike907 · Post by **Mike907** » Sat Apr 13, 2013 2:58 am

Pics of the keyless chuck:

[ATTACH]20984[/ATTACH]

Tapered arbor. I have things to learn here, because when I tried drilling a 1/2" hole in a 2 by 4, the chuck and bit fell off the arbor when I was clearing chips.

[ATTACH]20985[/ATTACH]

Chuck with 1/2" bit.

[ATTACH]20986[/ATTACH]

Closer view. If this was a double struck coin, I might be rich.

[ATTACH]20987[/ATTACH]

Collar Labels

[ATTACH]20988[/ATTACH]

Business end.

Mike

tgamel · Post by **tgamel** » Sat Apr 13, 2013 5:53 am

ryanbp01 wrote:My keyed chuck, which came with the machine, still works fine for me. I'm going to stick with what I have. Besides, that'll put me $150.00 closer to the PP upgrade!:D
BPR

Same here, all my cordless drills have key less chucks and no matter how tight I attempt to get them some drill bits just do not stay in very well. Key less may make transitions faster, but for now I think I will spend my money on something else. Been eyeing that lift assist option for my 500.

Todd

pieceseeker · Post by **pieceseeker** » Sat Apr 13, 2013 5:54 am

Good pics, thanks. What did you do to re-install the chuck on the arbor? Do you have to hammer it on or is there a threaded hole in the chuck end of the arbor?

dusty · Post by **dusty** » Sat Apr 13, 2013 7:16 am

Yes, great pictures. Thanks for taking the time to prepare this post. It was very interesting.

I have moved most of my drilling to a 'shorty' and I believe that this keyless chuck is enough longer than the regular chuck that it might prevent my chucking normal bits.

This is something for everyone to think about when deciding to go for a shorty.

nuhobby · Post by **nuhobby** » Sat Apr 13, 2013 10:22 am

Mike907 wrote: Closer view. If this was a double struck coin, I might be rich.

Mike

The numeric "fonts" look a lot like those on a Live Center I got from Shars Tools. It's a very nice live-center.

Mike907 · Post by **Mike907** » Sat Apr 13, 2013 5:04 pm

I cleaned the residual packing lubricant from the tapered arbor and the chuck bore and drilled holes up to 1 inch diameter. The chuck stayed on the arbor just fine. Its is also very easy to open to change bits. Time will tell if it grips as well as a keyed chuck. I wasn't able to test for runout, but the test holes all seemed smooth, round, and straight.

Here is a comparison shot confirming what Dusty said. You lose 2.4 inches of drilling room.

[ATTACH]20995[/ATTACH]

I finally found my original chuck so that I could take this picture, now if I could only find the key.

Mike