[TheForge] drill bit stock

[Ralph Sproul]

Larry has a good point on this one if the tap is only down about 1/8 of an
inch.  This rod is called Stud plus by Allstates repair rods.  I have
purchased and used two packages of this rod for removal of broken studs and
bolts from flywheels, dampers, castings, etc.

I've found the rod does what Larry says and stays to the center if your not
to deep.  The flux goes out and fills the threads.  On deeper holes where
something is in about 3/8 to 3/4 deep.......I've used a piece of rubber
vacuum hose over the stick to make sure I dont' side arc the threads.   When
it is a real critical location I've also used those fibre faucet washers as
"bullseyes" to make sure I hit dead center on the broken stud or bolt with
the rod.

Roger, do you want me to send along a rod of this material.   It is like
150,018........and it forms up like an icicle - one tack on top of the other
until you can get a grip on the stack of repair rod with a set of vice
grips - or welding on a nut to get a better two sided twist works well also.
So it does not weld up like stud welding - but rather one tack on top of the
next to build it out to where you can get at it.

Ralph

----- Original Message -----
From: "Larry and Pat Brown" <lp.brown at verizon.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Tuesday, May 31, 2005 9:42 PM
Subject: Re: [TheForge] drill bit stock


> Do you have an electric welder? They sell a rod for building up broken
> bolts to get them out, The rod burns in the center, under the coating and
> doesn't arc to the sides allowing you to puddle a new bolt shaft. Used
them
> about 4 times with success. Would have used more but that was all that was
> in the sample pack. I would try to heat the bit first, then build it up to
> where vise grips will help
> Larry Brown
>
>
> At 08:50 AM 5/31/2005 -0700, you wrote:
> >Does anyone out there know the type of stock used in the common hardware
> >store high speed drill bits for steel.  Do you per chance know the steps
> >for annealing them.
> >
> >Yes,  I ask because I broke a drill bit in a piece of stock where
> >welding, reforging, and repositioning was not an option.  I tried all
> >the tricks as well as attemting to anneal as I would a common high
> >carbon steel and drill it out but it seemed to have little or no affect.
> >
> >Thank you,
> >
> >Roger Olsen
> >
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