These sound useful, ever used anything like this?
http://www.ebay.co.uk/itm/181742384239

Yes, I have a set. As useful as a chocolate teapot. If you want to further butcher already knackered screw heads and/or enjoy the juddering sensation of the drill bouncing on them, these are your chaps.

Terry.

On Thursday, 31 March 2016 17:06:41 UTC+1, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to further butcher already knackered screw heads and/or enjoy the juddering sensation of the drill bouncing on them, these are your chaps.

Terry.

+1
Effing useless.
Never have I succeeded using them.

On Thu, 31 Mar 2016 18:13:02 +0100, harry wrote:

On Thursday, 31 March 2016 17:06:41 UTC+1, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to further butcher already knackered screw heads and/or enjoy the juddering sensation of the drill bouncing on them, these are your chaps.

Terry.

+1
Effing useless.
Never have I succeeded using them.

Did you drill a pilot hole first?

--
Do you know what a Jewish dilemma is?
Free ham.

On Thursday, 31 March 2016 18:17:07 UTC+1, Mr Macaw wrote:
On Thu, 31 Mar 2016 18:13:02 +0100, harry wrote:

On Thursday, 31 March 2016 17:06:41 UTC+1, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to further butcher already knackered screw heads and/or enjoy the juddering sensation of the drill bouncing on them, these are your chaps.

Terry.

+1
Effing useless.
Never have I succeeded using them.

Did you drill a pilot hole first?

--
Do you know what a Jewish dilemma is?
Free ham.

Yes.

harry wrote:
On Thursday, 31 March 2016 17:06:41 UTC+1, wrote:

Yes, I have a set. As useful as a chocolate teapot. If you want to further butcher already knackered screw heads and/or enjoy the juddering sensation of the drill bouncing on them, these are your chaps.

Terry.

+1
Effing useless.
Never have I succeeded using them.

I have a set and they work, but have a much finer thread. These
seem a bit coarse and I'd expect them to fail to grip adequately.

On Thu, 31 Mar 2016 22:29:21 +0100, Capitol wrote:

harry wrote:
On Thursday, 31 March 2016 17:06:41 UTC+1, wrote:

Yes, I have a set. As useful as a chocolate teapot. If you want to further butcher already knackered screw heads and/or enjoy the juddering sensation of the drill bouncing on them, these are your chaps.

Terry.

+1
Effing useless.
Never have I succeeded using them.

I have a set and they work, but have a much finer thread. These
seem a bit coarse and I'd expect them to fail to grip adequately.

Useful information, I'll have a good look at several makes before buying.

--
"You might show me a little more respect" complained the coed as she and her date were driving back from "Lover's Lookout".
"Yeah?" asked the smirking boy, "Like by doing what?"
"Well, for starters, not flying my panty hose from your radio aerial."

I agree about the issue with these particular extractors being too blunt for the job. Sharper edged varieties might work ok.

IME, with these particular extractors and working on screws, drilling a pilot hole of sufficient depth and width to allow good purchase tends to risk removing the screw head itself as the tip of the drill approaches the screw shaft. Even if you don't end up with the screw head coming off during the preparatory drilling of the pilot hole, the screw tends to be suffiently weakened for the head to come off when the extractor is applied.

Bearing in mind that a seized screw tends to be so stuck-fast that the metal of the head pattern will mash before the screw will turn, it's no surprise that any process that weakens the head-shaft connection in order to get more purchase will likely produce a snapped head.

These things might work better on bolts, but I have yet to enjoy success.

Terry

On 4/1/2016 6:04 AM, wrote:
I agree about the issue with these particular extractors being too blunt for the job. Sharper edged varieties might work ok.

IME, with these particular extractors and working on screws, drilling a pilot hole of sufficient depth and width to allow good purchase tends to risk removing the screw head itself as the tip of the drill approaches the screw shaft. Even if you don't end up with the screw head coming off during the preparatory drilling of the pilot hole, the screw tends to be suffiently weakened for the head to come off when the extractor is applied.

Bearing in mind that a seized screw tends to be so stuck-fast that the metal of the head pattern will mash before the screw will turn, it's no surprise that any process that weakens the head-shaft connection in order to get more purchase will likely produce a snapped head.

These things might work better on bolts, but I have yet to enjoy success.

Terry


In my experience also they very rarely work. Once you drill the screw
head off, you can normally disassemble the parts, then you have a short
length of shank exposed. Apply penetrating oil and let it soak. Grip the
shank very firmly with a mole wrench. (Put a pair of flats on it if the
diameter is reasonable). That will free up most things IME. For studs
that are broken off flush, try to drill a small hole down the axis of
the stud until it breaks through at the bottom. Successively increase
the drill size until you just reach the tips of the threads in the hole.
(You can't normally get the drill exactly central, so you reach the
threads at one point). Once you have done that, apply a chisel to the
remaining stud material near the break-through point. The stud should be
sufficiently weakened that you can "collapse" the tube so that it
becomes free in the threaded hole. In extreme cases, if you have managed
to drill close to the axis, you can sometimes "unwind" the thread like a
spring.

On Thursday, 31 March 2016 22:35:59 UTC+1, Capitol wrote:
harry wrote:
On Thursday, 31 March 2016 17:06:41 UTC+1, wrote:

Yes, I have a set. As useful as a chocolate teapot. If you want to further butcher already knackered screw heads and/or enjoy the juddering sensation of the drill bouncing on them, these are your chaps.

Terry.

+1
Effing useless.
Never have I succeeded using them.

I have a set and they work, but have a much finer thread. These
seem a bit coarse and I'd expect them to fail to grip adequately.

Exactly correct.

On Thu, 31 Mar 2016 17:06:39 +0100, wrote:

Yes, I have a set. As useful as a chocolate teapot. If you want to further butcher already knackered screw heads and/or enjoy the juddering sensation of the drill bouncing on them, these are your chaps.

Terry.

If your drill is bouncing, you need a table drill, or whatever they're called, or a firmer grip.

--
I told my wife the truth. I told her I was seeing a psychiatrist.
Then she told me the truth: that she was seeing a psychiatrist, two plumbers, and a bartender.

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Fri, 01 Apr 2016 12:47:58 +0100, John Rumm wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Never used one of those, I'll have to get hold of some left handed drills.

--
A man goes into a library and asks for a book on suicide.
The librarian says, "**** off, you won't bring it back!"

On 01/04/2016 12:55, Mr Macaw wrote:
On Fri, 01 Apr 2016 12:47:58 +0100, John Rumm
wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Never used one of those, I'll have to get hold of some left handed drills.

Don't forget to get a left handed screwdriver at the same time.

On Fri, 01 Apr 2016 13:14:36 +0100, Clive George wrote:

On 01/04/2016 12:55, Mr Macaw wrote:
On Fri, 01 Apr 2016 12:47:58 +0100, John Rumm
wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Never used one of those, I'll have to get hold of some left handed drills.

Don't forget to get a left handed screwdriver at the same time.

Those lefty folk are weird, I wouldn't be surprised if there was such a thing.

--
Bikini e pareo, camicia di pizzo e shorts, top e gonna di crochet!

"Mr Macaw" wrote in message news
On Fri, 01 Apr 2016 12:47:58 +0100, John Rumm
wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Never used one of those, I'll have to get hold of some left handed drills.

Get some from dickhead, he's always arse-about.
Ask him for a long weight while you're at it.

"John Rumm" wrote in message
o.uk...
On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

dickheads reply - like hell it will, not with left hand thread screws.
More stupid than you usually manage.

On 2016-04-01, John Rumm wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Are you April-fooling?

On Friday, 1 April 2016 14:30:05 UTC+2, Adam Funk wrote:
On 2016-04-01, John Rumm wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Are you April-fooling?

Don't think so. Eg: http://www.amazon.co.uk/Cobalt-Alloy...dp/B0154WL8IQ/

They are drills with the thread running the other way (so they will tend to
exert a torque on the screw which undoes it).

On 4/1/2016 2:16 PM, Martin Bonner wrote:
On Friday, 1 April 2016 14:30:05 UTC+2, Adam Funk wrote:
On 2016-04-01, John Rumm wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Are you April-fooling?

Don't think so. Eg: http://www.amazon.co.uk/Cobalt-Alloy...dp/B0154WL8IQ/

They are drills with the thread running the other way (so they will tend to
exert a torque on the screw which undoes it).

Amusing to see that the photo clearly shows normal right handed drills.

On 2016-04-01, Martin Bonner wrote:

On Friday, 1 April 2016 14:30:05 UTC+2, Adam Funk wrote:
On 2016-04-01, John Rumm wrote:

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Are you April-fooling?

Don't think so. Eg: http://www.amazon.co.uk/Cobalt-Alloy...dp/B0154WL8IQ/

They are drills with the thread running the other way (so they will tend to
exert a torque on the screw which undoes it).

Hmm, I guess the photo got reversed somehow!

On 01/04/2016 13:26, Adam Funk wrote:
On 2016-04-01, John Rumm wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Are you April-fooling?

Much as it might sound like it, no, I am actually being serious,

I have a set of drills that cut when spun in the anticlockwise
direction. They are particularly good for drilling stuck fasteners,
since the heat generated by the drilling combined with the direction of
rotation will often spin out the stuck fastener. If they don't, then you
still have a hole ready to try a stud extractor in.

(although if you snap off the hardened stud extractor, you are still in
the same world of hurt!)


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On Fri, 01 Apr 2016 20:31:39 +0100, John Rumm wrote:

On 01/04/2016 13:26, Adam Funk wrote:
On 2016-04-01, John Rumm wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Are you April-fooling?

Much as it might sound like it, no, I am actually being serious,

I have a set of drills that cut when spun in the anticlockwise
direction. They are particularly good for drilling stuck fasteners,
since the heat generated by the drilling combined with the direction of
rotation will often spin out the stuck fastener. If they don't, then you
still have a hole ready to try a stud extractor in.

(although if you snap off the hardened stud extractor, you are still in
the same world of hurt!)

Some electric drills go slower in reverse.

--
O'Hare Approach Control to a 747: "United 329 heavy, your traffic is a Fokker, one o'clock, three miles, Eastbound."
United 239: "Approach, I've always wanted to say this... I've got the little Fokker in sight."

On 2016-04-01, John Rumm wrote:

On 01/04/2016 13:26, Adam Funk wrote:
On 2016-04-01, John Rumm wrote:

On 31/03/2016 17:06, wrote:
Yes, I have a set. As useful as a chocolate teapot. If you want to
further butcher already knackered screw heads and/or enjoy the
juddering sensation of the drill bouncing on them, these are your
chaps.

I have found them ok in some cases. You need to drill a hole for them
though. (you are more likely to have success on fairly substantial bolts
etc rather than normal screws)

Quite often just drilling the hole with a left handed drill bit will do
the job all by itself.

Are you April-fooling?

Much as it might sound like it, no, I am actually being serious,

I have a set of drills that cut when spun in the anticlockwise
direction. They are particularly good for drilling stuck fasteners,
since the heat generated by the drilling combined with the direction of
rotation will often spin out the stuck fastener. If they don't, then you
still have a hole ready to try a stud extractor in.

(although if you snap off the hardened stud extractor, you are still in
the same world of hurt!)

Or if you snap off the special drill!

On 31 Mar 2016, "Mr Macaw" grunted:

These sound useful, ever used anything like this?
http://www.ebay.co.uk/itm/181742384239

Contrary to others' experience it seems, I once used successfully one in my
youth to remove a cylinder head stud on my motorbike. Decades ago now, so I
can't recall the circumstances; notably what had originally happened to the
stud; however I can certainly remember the tangible relief when I got it
out!

--
David

If you use that type simply on a knackered head they will not work, they require a pilot hole drilling through the head into the screw then they work perfectly well based on experience.

Richard

On Thu, 31 Mar 2016 18:04:59 +0100, Tricky Dicky wrote:

If you use that type simply on a knackered head they will not work, they require a pilot hole drilling through the head into the screw then they work perfectly well based on experience.

Richard

The only things I've used before are these stupid things, which are supposed to self tap. They don't. They take ages to get anywhere and just tear the top part of the screw to pieces:

https://www.dropbox.com/s/6zy944n30n...mover.jpg?dl=0

--
Men wake up as good-looking as they went to bed.
Women somehow deteriorate during the night.

On 31/03/2016 18:11, Mr Macaw wrote:
On Thu, 31 Mar 2016 18:04:59 +0100, Tricky Dicky
wrote:

If you use that type simply on a knackered head they will not work,
they require a pilot hole drilling through the head into the screw
then they work perfectly well based on experience.

Richard

The only things I've used before are these stupid things, which are
supposed to self tap. They don't. They take ages to get anywhere and
just tear the top part of the screw to pieces:

https://www.dropbox.com/s/6zy944n30n...mover.jpg?dl=0


I have had some success with a similar product but maybe it depends on
how seized they are. One point though the extractors are strong but
brittle and there is a danger of snapping one while trying to extract.
Then you will have days of fun trying to drill out the extractor.

On Thu, 31 Mar 2016 21:48:31 +0100, ss wrote:

On 31/03/2016 18:11, Mr Macaw wrote:
On Thu, 31 Mar 2016 18:04:59 +0100, Tricky Dicky
wrote:

If you use that type simply on a knackered head they will not work,
they require a pilot hole drilling through the head into the screw
then they work perfectly well based on experience.

Richard

The only things I've used before are these stupid things, which are
supposed to self tap. They don't. They take ages to get anywhere and
just tear the top part of the screw to pieces:

https://www.dropbox.com/s/6zy944n30n...mover.jpg?dl=0


I have had some success with a similar product but maybe it depends on
how seized they are. One point though the extractors are strong but
brittle and there is a danger of snapping one while trying to extract.
Then you will have days of fun trying to drill out the extractor.

Why do they make them brittle? They should be stronger than the average screw.

--
I used to work in a fire hydrant factory. You couldn't park anywhere near the place. -- Steven Wright

On 3/31/2016 6:11 PM, Mr Macaw wrote:
On Thu, 31 Mar 2016 18:04:59 +0100, Tricky Dicky
wrote:

If you use that type simply on a knackered head they will not work,
they require a pilot hole drilling through the head into the screw
then they work perfectly well based on experience.

Richard

The only things I've used before are these stupid things, which are
supposed to self tap. They don't. They take ages to get anywhere and
just tear the top part of the screw to pieces:

https://www.dropbox.com/s/6zy944n30n...mover.jpg?dl=0

I've never had much luck with these.

On Thu, 31 Mar 2016 17:59:24 +0100, Jethro_uk wrote:

On Thu, 31 Mar 2016 16:40:27 +0000, Lobster wrote:

On 31 Mar 2016, "Mr Macaw" grunted:

These sound useful, ever used anything like this?
http://www.ebay.co.uk/itm/181742384239

Contrary to others' experience it seems, I once used successfully one in
my youth to remove a cylinder head stud on my motorbike. Decades ago
now, so I can't recall the circumstances; notably what had originally
happened to the stud; however I can certainly remember the tangible
relief when I got it out!

Ooh err Missis !!!!

What I want to know is how he got the local stud up there. Was it a rear end shunt on the motorbike?

--
The dot over the letter i is called a tittle.

Mr Macaw wrote:
These sound useful, ever used anything like this?
http://www.ebay.co.uk/itm/181742384239
We call them easy outs, been using them for years, have to drill the
right size hole first, lately I have been having success witht hese

http://tinyurl.com/htlekg8

On 4/1/2016 7:41 AM, F Murtz wrote:
Mr Macaw wrote:
These sound useful, ever used anything like this?
http://www.ebay.co.uk/itm/181742384239
We call them easy outs, been using them for years, have to drill the
right size hole first, lately I have been having success witht hese

http://tinyurl.com/htlekg8

Never seen that design before. Only seem to be available from the USA,
but they sell them singly, e.g.

http://www.ebay.co.uk/itm/6-Square-E...AOSwv0tVc18 X

Not cheap but apparently a high quality alloy steel.