Jump to content

Drill Chuck Runout on DCD780 (20v MAX)


Recommended Posts

Hi there.  I'm new, and just bought my first DeWalt tool to replace a nice older Makita and a cheap Ryobi set whose batteries just weren't cutting it anymore.  I opted for the DCK280C2 Drill/Driver and Impact Driver set. :)

My question is regarding the chuck on the DCD780.  I noticed that it has a small bit of runout.  I'm a home machinist, so I put my dial indicator to it.  It looks like it has about .014" (total, +/-.007") wobble at 1".  (I used a 1/2" bearing shaft that I know is straight.) 

My question is what is acceptable tolerance here?  I did some searching, and a few Amazon reviews do show up with people complaining about the straightness of the chuck on these 20v MAX drill/drivers.  I also saw one post that listed a response from DeWalt to a customer:

Sorry to hear of your problems with chuck run-out. Our specs call for no more then 15,000 one inch [sic] from end of chuck.

I assume thats 15 one-thousandths or .015 -- that seems like an awful amount of runout to me, but I could just be used to mills and lathes that have higher tolerances.

So my questions to the community: where should I set my exceptions?  should I be calling my DeWalt service center?



Link to comment
Share on other sites

I'm just trying to determine what my expectations should be on chuck runout.  I do admit that the reviews on Amazon maybe have me a bit paranoid about my new tool purchase.  It seems like 3 of the 8 posted reviews mention chuck wobble or runout-- and some of those have comment replies that back it up further.


I probably wouldn't have even checked the run out unless I saw these reviews.  I'm very happy with the quality of the product otherwise... but to it really seems pretty basic that the chuck should be co-axial with the motor.

Am I over thinking things?  Anyone else have any experience with run out on their drill/drivers?

Link to comment
Share on other sites

I have multiple drills, if you have read any of my reviews, you've probably seen the slew of drills in every shape, brand and size. Every drill I own has wobble. Some worse than others, but they all have some play. I don't know what a acceptable tolerance would/should be? My Rohm branded chuck's for whatever reason seem to be the smoothest, LFA's, then Jacobs, then the home-grown unknown chucks.

There are a lot of other good quality chuck's out there, but a majority of what I own are listed above.

Link to comment
Share on other sites

For what I´ve seen the hammer versions also seems to be worse than the non hammer versions. My little dcf610 has very little wooble, my dcd920 (dcd960 in us i guess )  has little wooble. My freinds dcd985 has more wooble ( hammer drill) and one of my other friends dcd975 ( no hammer mode ) has less wooble than the dcd985.

Could just be a coincidence, have no idea but as Dewalt Dude wrote, all drils have some wooble, some more, some less.

And it can not be a dewalt issue I guess since many different drill manufactures buy chucks from same chucks manufactures.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Member Statistics

    Total Members
    Most Online
    Newest Member
  • Create New...