Jake-B Posted November 30, 2011 Report Share Posted November 30, 2011 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 Link to comment Share on other sites More sharing options...
burlguy Posted November 30, 2011 Report Share Posted November 30, 2011 .014" runout ..................... Please tell me you dont plan on building clock gears with a contractors grade drill. Link to comment Share on other sites More sharing options...
cyclone700 Posted November 30, 2011 Report Share Posted November 30, 2011 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. Link to comment Share on other sites More sharing options...
Jake-B Posted December 1, 2011 Author Report Share Posted December 1, 2011 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. http://www.amazon.com/DEWALT-DCK280C2-20-Volt-Li-Ion-Compact/dp/B0052MIIX2/ref=sr_1_1?ie=UTF8&qid=1322704401&sr=8-1 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 More sharing options...
kanxrus Posted December 1, 2011 Report Share Posted December 1, 2011 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 More sharing options...
Bingobelle Posted December 1, 2011 Report Share Posted December 1, 2011 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 More sharing options...
burlguy Posted December 2, 2011 Report Share Posted December 2, 2011 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. Link to comment Share on other sites More sharing options...
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