i use an impact driver like mike.
bought it 40 yrs ago to get phillips head screws out of yamaha motors,
still use it.
since you already messed up the head, grind them off and deal with the stub
later
chances are it's the head rusted in place, the rest will come out with
kroil and pliers
On Sat, Aug 3, 2013 at 2:03 AM, Mike & Inez Mail <impl...@comcast.net>wrote:
> **
>
>
> Try an impact driver, it uses the same clutch head bit, but you strike the
> driver with a big hammer, that twists out the screw.
> Mike 50 3100
>
> HI
> Dismanteling interior of 46' pickup interior. Some of you have been there.
> Have worked all day and have 7 screws our and three with ruined heads
> (cammed out) which I can't get out.
>
> The problem is rust. I am using a fresh clutch head bit in a 1/4 inch
> drive
> ratchet. I don't have enough power in my hands to use a straight driver. I
> douse each screw several times with Kroil penitrant. I take it slow and
> use
> as much downward pressure as I can. Some are so frozen that either the bit
> starts to twist or the bit cams out ruining the screw head.
>
> I tried Alden Grabit bolt and damage screw extractors to no avail. I tried
> drilling but the screw head is really, really hard. I dull a fresh HSS
> drill
> in about 20 seconds.
>
> Should I buy a left hand drill? A carbide drill?
>
> Should I use heat on the screw head?
>
> Should I take a die grinder and carbide bit and grind off the head and
> hopefully deal with the remaining stub somehow?
>
> Has anyone here been there - done that?
>
> Tom
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
>
>
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