Archived from the Tools In Action forum (Dewalt). This thread is read-only.
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?
Thanks,
Jake
.014″ runout ………………… ::) Please tell me you dont plan on building clock gears with a contractors grade drill.
It might be worth checking the runout on the spindle the chuck mounts on. I would wonder if it’s the drill spindle or the chuck itself that’s off.
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?
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.
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.
My 36v drill as at least 1/32″ of wobble at the end of the chuck. All hammer drills have to have more clearance to reciprocate freely. I have absolutely countless hours on mine and it is still going strong. I finally got to use my 36v jigsaw today and it made me $350. ;D