Drill bits slipping out

[stickshift]

I picked up a cheap keyless chuck 3/8" drill on Craigslist for $15. In operation, drill bits sometimes work their way out of the chuck. This seems to happen most readily with small bits (< 1/8"), but also had it happen with a 3/8" bit.

Is this an issue for cheap drillls, keyless drills, or both? Is there an easy fix, or would it be easiest to just get another drill, and if so, would a cheap keyed chuck drill solve the problem or should I spend more money?

 

[Ign]

Could very well be the chuck. Best fix for me is to put the drill in low (if so equipped), grab the chuck w a gloved hand and nearly stall the drill in forward to get the chuck as tight as I can.

My M12 3/8" drill stops so suddenly it effectively loosens the chuck sometimes. I have to get the chuck on my V28 drill VERY tight, but it's been thru hell and lasted 8 years so I don't blame the chuck.

 

[Jim Johnstone]

Could be the chuck is old and tired. The jaws could be worn as well. Dont blame keyless chucks in general there are some very good ones out there.

Sent from my SGH-I727R using Tapatalk 2

 

[jjjrmx5]

Cheap keyless chucks tend to do this. We bought 24 cheap HF cordless drills years ago for the temp. workers on the shop floor since the co. provided most power tools.

Even tighted down hard, as the tiem went on, many just couldn't keep a bit tight.

On air drills I see it too with keyed chucks as you cannot get the chuck tight enough with the small key on a 3/8" chuck.

See if you can find a new, used or clearence Jacobs keyless chuck for it.

If cost prohibitive, then yep, it's time to move up to a higher quality drill.

Good and cheap don;t tend to go together in the cordless drill world very often. BTDT.

 

[CWP1616L]

You can always get drill bits with the 1/4'' hex shaft, that'll stop the slippage; pricy little buggers though.

 

[rusty65]

My newish cordless craftsman drill does the same thing I just hold on the chuck with a pair of channellocks and pull the trigger and it tightens pretty good but if you need it tighter you can use the channellocks to give a extra turn as well. Just what I do I'm sure there are better ways but that's how I do it.


Sent From Snap On Head Quarters deep in China.

 

[Stuey]

It's hard to say if it's loose because the chuck is worn or cheap.

Buy a new one and see how it goes.

If you continue to experience slippage, buy a set if tri-lobed drill bits.

 

[4x4gearhead]

I would instead buy some drill bits with the 3 sided flutes on the shank instead of putting more money into what sounds like an already cheap drill. Irwin makes decent ones that I use. They are not that much either if you decide to buy a few sizes youre always using.

 

[stickshift]

Yeah, it's a cheap corded drill. I'm not going to put anymore money into it. I'll just sell it and get another drill.

Do keyed chucks generally secure drill bits better than keyless chucks? Do drill drivers come in the keyed variety (the drill drivers I've seen have all been keyless)?

Any downsides to keyed chucks relative to keyless chucks other than always have to locate the key?

 

[cheechi]

does the chuck have grooves or is it smooth? I find the best success with the grooved or otherwise machined ones. Like any of my Bosch cordless. Grips way better than either my B&D or Dewalt keyed even. And better than dad's old B&D corded from back in the day.

 

[Monte]

Good keyless chucks are self tightening and the bits shouldn´t slip.
The company "Rohm" makes keyless chucks with carbide jaws so the bits can´t slip.

 

[lilredex]

Most of those inexpensive keyless chucks are junk. You can find a quality imports here.

http://www.cdcotools.com/

 

[Jim Johnstone]

Good keyless chucks are self tightening and the bits shouldn´t slip.
The company "Rohm" makes keyless chucks with carbide jaws so the bits can´t slip.

I'll second this. I have used many rohm keyless chucks working in machine shops and they are the cats ***. I believe dewalt uses rohm chucks on their highest end cordless hammer drill.

Sent from my SGH-I727R using Tapatalk 2

 

[larry_g]

Be aware that Rohm and Jacobs as well as others do sell cheap chucks also and some are not worth free.

lg
no neat sig line

 

[CWP1616L]

Do keyed chucks generally secure drill bits better than keyless chucks?

Yes they do. Especially for smaller drill bits.

 

[Ign]

Good keyless chucks are self tightening and the bits shouldn´t slip.
The company "Rohm" makes keyless chucks with carbide jaws so the bits can´t slip.

Eh, theoretically. But fact is when you're holding a round at only 3 points it can always find a way to slip. My Albrecht chucks on my mill are good, but if something binds up the bit will still slip.

Beware self tightening chucks with hole saw arbors that have a hollow hex shank (and quite a few do). They will CRUSH the hollow shank to dust.

 

[Farmall450]

Could be the chuck is old and tired. The jaws could be worn as well. Dont blame keyless chucks in general there are some very good ones out there.

Sent from my SGH-I727R using Tapatalk 2

Our dewalt 18v's lock shut, very nice indeed...

 

[alansblue]

For -small- drill bits, you can cheat.

Micro sizes: Precision Micro Chuck
Up to 1/8th: Mini Drill Chuck

The hex shanks should be gripped pretty well even if the three teeth don't come together all the way correctly on your chuck.