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Item #: SB1378
Model # SB1378
Overview
These keyless chucks are produced with an integral shank to maximize concentricity between the body, shank and jaws. They start as a one-piece high alloy body which is turned, then finish ground throughout, making them as close to zero TIR (Total Indicated Runout) as can be. A spanner is provided to ease jaw opening.
Reviews

4 Customer Reviews (4.8 out of 5 stars) : Sign in to write a review

Anonymous Reviewer
Spectacular! 04/24/2019 1:14:44 AM

Wow, holy moly. Just got this yesterday, mounted it up, and it is absolutely amazing. I put it on a big floor-standing Delta drill press that had a stock 5/8 inch keyed chuck that was OK but nothing special. Kind of clunky in retrospect. The addition of this keyless chuck turns the drill press into a surgically-precise instrument. Man o man. I use a lot of fine bits for lutherie work, and this chuck is absolutely perfect down to the tinyest bits I use. Indescribably better than the stock chuck. As well as being spectacular from a functional standpoint, it is gorgeous. I agree with another review... it is a bit "stiff", but I think that is the flip side of it being so precisely machined. I just flip up the housing cover for the drill press pulleys, and hold the front pulley spindle while I twist the chuck. I usually back-twist that pulley stack to speed up chuck settings anyway... I did that for my stock chuck. So no biggie. Can't say enough good stuff about this chuck. I got it on sale, after a discussion with a helpful tech support guy. SO glad I didn't get the cheaper one. Now I wish I would have gotten this a couple years ago, not even on sale.

Anonymous Reviewer
very nice but stiff 12/25/2018 8:48:23 PM

No feedback given

Anonymous Reviewer
04/05/2018 2:32:45 PM

Don't understand the negative reviews. This is exactly what I needed and it fit perfectly.

jim A
03/25/2018 3:04:46 PM

The only issue I have with this chuck is that it is stiff to chuck up and to release the drill bit. I have to open the top of the drill press and hold the belt front wheel to have enough resistance to release or tighten the chuck. Otherwise it is much better that the chuck that came with the G7944. That chuck had a runout of 0.0055 while this chuck has a runout of 0.002.