I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

Edge wrote:
....
... Other than replacing the chuck, ...

Nope, unless it's just dirty or the bits are galled. Sorry chucks are
sorry chucks, sorry...

--

"Edge" wrote in message
...
I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.


It seems to be characteristic of many keyless chucks. I have less of a
problem with slippage using hex bits.

On Aug 12, 11:01*am, "John Grabowski" wrote:
"Edge" wrote in message

...

I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

It seems to be characteristic of many keyless chucks. *I have less of a
problem with slippage using hex bits.

Know whjat you mean especially 'getting older' keyless chucks!
Grind a couple of flats onto the drill bit/s. For hard drilling
anyway.
Some are probably already scarred from the slippage?

On Tue, 12 Aug 2008 05:18:07 -0700 (PDT), Edge
wrote:

I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

What are you drilling? New or old bits? Are you using the right bits
for the job? Maybe dull bits are your problem.

You can grind 3 flats on the drill bits which if not done exactly
symetrical will make the drill bit wobble. Aside from tightening the
chuck with a key, it's the chuck thats letting you down and would need
to be replaced. Sears may give you a new drill if you explain the
problem, I think they have fairly good customer service.

(Bill) wrote in
:

On Tue, 12 Aug 2008 05:18:07 -0700 (PDT), Edge
wrote:

I have a Craftsman 19.2 volt drill with a half inch chuck.

Keyed or keyless chuck?

Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

What are you drilling? New or old bits? Are you using the right bits
for the job? Maybe dull bits are your problem.



put a heavy rubber band around the chuck to help get a better grip on it.
(for a keyless chuck)

he could grind 3 flats on the shank of the bits,with a Dremel.
Are the bit shanks all chewed up from slipping in the chuck? then you need
new bits.

also,maybe he's pressing TOO hard,forcing the bit thru the work.

--
Jim Yanik
jyanik
at
kua.net

On Aug 12, 8:18*am, Edge wrote:
I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

I bet that it is a ****ty keyless chuck, in which case the fix is to
replace it with a decent Jacobs keyed chuck.

nate

In article
,
N8N wrote:

On Aug 12, 8:18*am, Edge wrote:
I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

I bet that it is a ****ty keyless chuck, in which case the fix is to
replace it with a decent Jacobs keyed chuck.

nate

Or a decent keyless chuck.

On Aug 12, 1:09*pm, Smitty Two wrote:
In article
,

*N8N wrote:
On Aug 12, 8:18*am, Edge wrote:
I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

I bet that it is a ****ty keyless chuck, in which case the fix is to
replace it with a decent Jacobs keyed chuck.

nate

-- Or a decent keyless chuck.

Gotta agree with Smitty Two. I'm not sure what the OP's problem is,
but the keyless chucks on my DeWalt cordless drills have never given
me a problem.

On Aug 12, 8:18*am, Edge wrote:
I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

Why are you pressing down so hard?
Try using a little cutting oil
Use sharp bits,
If you are drilling a large hole drill a small pilot hole first.
Still having problems, you have a bad chuck.

110 or 220 is electric !! 19.2 is battery !!!

Jerry LOL

Edge wrote:

I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

At least some keyless chucks, including those in Ryobis (your drill
may actually be one) have a ridge in each jaw to grip bits better, but
I know people who still experience slippage problems with them.

As others have suggested, buy hex-shaft drill bits. But even the
cheapest keyed chuck will grip better than your keyless chuck.

Edge wrote:
I have a Craftsman 19.2 volt drill with a half inch chuck. Many times,
especially while pressing hard into the material being drilled, the
bit slips. No matter how much I tighten the chuck, the bit continues
to slip. Other than replacing the chuck, which isn't worth it, what
can be done? Is there a spray of some sort or something else to
provide a better grip on the bit.

You can get a helper Chimp or Gorilla
to tighten it for you. We have a few
mentally challenged guys working for
us who don't know their own strength
that substitute for apes. They can
break anything if you're not watching
but the law won't allow us to keep them
in a cage on the job.

[8~{} Uncle Monster