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Preventing drill bit slippage

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Preventing drill bit slippage John 04-25-2008
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Posted by John on April 25, 2008, 10:03 pm
I am using a 1/2" masonry bit in an old hammer-drill. At the slightest
catch, the bit slips, even to the point of coming out. It uses the old
screw thing to tighten.

I am thinking of grinding the bit up and down the bare spot. Any other
ideas?

John


Posted by Jim Yanik on April 25, 2008, 10:51 pm

> I am using a 1/2" masonry bit in an old hammer-drill. At the slightest
> catch, the bit slips, even to the point of coming out. It uses the old
> screw thing to tighten.
>
> I am thinking of grinding the bit up and down the bare spot. Any other
> ideas?
>
> John
>
>

replace the chuck with a new one.If the bit shank is damaged,get a new bit.

--
Jim Yanik
jyanik
at
kua.net

Posted by Red Green on April 26, 2008, 11:50 pm

>
>> I am using a 1/2" masonry bit in an old hammer-drill. At the
>> slightest catch, the bit slips, even to the point of coming out. It
>> uses the old screw thing to tighten.
>>
>> I am thinking of grinding the bit up and down the bare spot. Any
>> other ideas?
>>
>> John
>>
>>
>
> replace the chuck with a new one.If the bit shank is damaged,get a new
> bit.
>

Who woulda thought... :-)

Posted by John on April 29, 2008, 9:31 am
>
>>
>>> I am using a 1/2" masonry bit in an old hammer-drill. At the
>>> slightest catch, the bit slips, even to the point of coming out. It
>>> uses the old screw thing to tighten.
>>>
>>> I am thinking of grinding the bit up and down the bare spot. Any
>>> other ideas?
>>>
>>> John
>>>
>>>
>>
>> replace the chuck with a new one.If the bit shank is damaged,get a new
>> bit.
>>
>
> Who woulda thought... :-)


Problem solved. I asked a friend and he told me to just grind a little bit
off three sides of the shank of the masonry bit. I did; it ground like
butter. And when the bit grabbed the material, it threw me against the
wall. Success!

John


Posted by Stormin Mormon on April 29, 2008, 10:09 am
Good thing to remember. Thanks for the field report.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
.



Problem solved. I asked a friend and he told me to just grind a little bit
off three sides of the shank of the masonry bit. I did; it ground like
butter. And when the bit grabbed the material, it threw me against the
wall. Success!

John



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