dalehsc
ALLIANCE MEMBER
I have a DeWalt DCD771 drill with keyless chuck. I can't seem to get the drill bits tight enough by hand. Any solution? do I need to replace the chuck assy?
DEWALT drill keyless chuck
- Thread starter dalehsc
- Start date
Does it start off tight enough but then become loose during use? Supposedly you can lock the chuck by tightening and then backing it off slightly until you hear a click.
I talked to Dewalt CS and they confirmed the feature. Might be worth a try before replacing the chuck.
I talked to Dewalt CS and they confirmed the feature. Might be worth a try before replacing the chuck.
mike93lx
ALLIANCE MEMBER
I always have to screw mine down extra with the drill stopped. If I just tighten using the motor and holding the chuck, it will always loosen in use
Paul_The_Builder
Well-known member
The chucks are replaceable. If you do a google search you'll find plenty of instructions and tips on how to do it.
Most DeWalt drills with metal chucks use Rohm chucks like this one.
Most DeWalt drills with metal chucks use Rohm chucks like this one.
I would hesitate before paying more for a chuck than the whole drill is worth, considering you can get the 771 with 2 x batteries, charger and bag for $100 new.
https://www.amazon.com/dp/B00ET5VMTU/?tag=atomicindus08-20
How about selling it and getting a new (bare tool) drill with a better chuck? Or keeping it for secondary screwdriver duty if you don't have an impact driver? I know, a drill is no impact driver, but there is some crossover for many tasks. Of course there are cheaper chucks too or cannibalize one off a dead *for parts* tool on ebay or wherever.
https://www.amazon.com/dp/B00ET5VMTU/?tag=atomicindus08-20
How about selling it and getting a new (bare tool) drill with a better chuck? Or keeping it for secondary screwdriver duty if you don't have an impact driver? I know, a drill is no impact driver, but there is some crossover for many tasks. Of course there are cheaper chucks too or cannibalize one off a dead *for parts* tool on ebay or wherever.
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mike93lx
ALLIANCE MEMBER
Oops, I didn't check the model number... I have a 996 with the nicer metal chuck, but either way, it still requires a lot of effort to tighten down. Plus the torque of the motor will twist your hand pretty hard if you just try to tighten with the motor. It is a pretty terrible setup, in general
^ Hard to tell for sure from old drill pics, but the chuck on the 996 looks a lot like the one on my 991. I've never had a problem tightening it, but I only spin the motor to get it snug, then grab the base of the chuck with my other hand to tighten it.
It does take a couple seconds longer than my other keyless drills but still faster than using a key.
It does take a couple seconds longer than my other keyless drills but still faster than using a key.
mike93lx
ALLIANCE MEMBER
^ Hard to tell for sure from old drill pics, but the chuck on the 996 looks a lot like the one on my 991. I've never had a problem tightening it, but I only spin the motor to get it snug, then grab the base of the chuck with my other hand to tighten it.
It does take a couple seconds longer than my other keyless drills but still faster than using a key.
Yeah, It still bites me every once and a while if I spin it too fast while trying to initially tighten it, especially if I have nitrile gloves on it of it grabs my silicone ring
alexwang32
Well-known member
Keyless chucks tend to have the problem of not being tight enough, the electric brake exasperates this by loosening the chuck through inertia every time you start and stop the drill.
I found that by letting go of the trigger slowly, thereby manually stopping the drill instead of letting the brake jerk it to a halt, the bit won't loosen as easily.
I found that by letting go of the trigger slowly, thereby manually stopping the drill instead of letting the brake jerk it to a halt, the bit won't loosen as easily.