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CarGuru > Open discussion > Impact drivers 13 April 2005 22:06:15
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Impact drivers

Iain McLaren 12 April 2005 12:34:02
 Hi,

I've got an impact driver to remove those stubborn screws and nuts 'n bolts,
but I'm not sure if I'm using it correctly (the instructions provided were
very, very vague).

It's made by Draper. On the neck of it there is a marking <- L - R ->,
which I presume refers to the handedness of the thread being undone, but I'm
not sure if it's the head or the body if the driver that should be rotated
in the direction of the arrow.

When in operation (ie being struck by hammer), should the impact driver
handle be held still, or should torque be applied to it in the direction
that you want the screw/nut/bolt to turn in (usually anti-clockwise).

What kind of hammer's best? A light-ish one or a lump?

TIA,

Iain


Add comment
Willy Eckerslyke 12 April 2005 12:51:02 [ permanent link ]
 Iain McLaren wrote:
I've got an impact driver to remove those stubborn screws and nuts 'n bolts, > but I'm not sure if I'm using it correctly (the instructions provided were > very, very vague).

I thought this was going to be a thread about Volvo parking.
It's made by Draper. On the neck of it there is a marking <- L - R ->, > which I presume refers to the handedness of the thread being undone, but I'm > not sure if it's the head or the body if the driver that should be rotated > in the direction of the arrow.

Press it against a hard surface and you'll see the head trying to rotate
in whichever direction it's set for.
When in operation (ie being struck by hammer), should the impact driver > handle be held still, or should torque be applied to it in the direction > that you want the screw/nut/bolt to turn in (usually anti-clockwise).

I usually apply a little torque just to take up any slack. Don't hold it
too tightly though - and wear thick gloves!
What kind of hammer's best? A light-ish one or a lump?

Biggest one you've got, is my suggestion, but I'm not a nengineer.
Add comment
Chris Bacon 12 April 2005 13:04:59 [ permanent link ]
 Iain McLaren wrote:> It's made by Draper. On the neck of it there is a marking <- L - R ->, > which I presume refers to the handedness of the thread being undone, but I'm > not sure if it's the head or the body if the driver that should be rotated > in the direction of the arrow.

You will see when you put a bit/socket on and push the thing against
something hard holding the driver body.

When in operation (ie being struck by hammer), should the impact driver > handle be held still, or should torque be applied to it in the direction > that you want the screw/nut/bolt to turn in (usually anti-clockwise).

I normally push the body down before hitting it, so that nearly all
the energy from the strike is transferred, not used to just move
the body so far.
What kind of hammer's best? A light-ish one or a lump?

Something in between! A lighter hammer is easier to use than a lump
hammer, and if you're removing screws from an aluminium casting,
for instance, there's less chance of driving the whole lot through
the metal with a huge blow!

If you take one of these things apart, you will see it's rather
crude, there's just a dog on the driven bit which engages in a
slot in the comparatively massive "handle". When you whack the
end, the inertia of the "handle" resists turning, and the bit
turns (a small amount) as well as being pushed into the screw
or whatever.
Add comment
Carl Bowman 12 April 2005 13:34:50 [ permanent link ]
 "Willy Eckerslyke" <oss108no_spam@bang­or.ac.uk> wrote in message
news:d3g25a$434$1@f­antastix.bangor.ac.u­k...> I thought this was going to be a thread about Volvo parking.

Shurely French parking?


Add comment
Mike G 12 April 2005 13:37:52 [ permanent link ]
 
"Iain McLaren" <iain.mclaren@scott­-moncrieff.moc> wrote in message
news:425b87fa$0$263­49$db0fefd9@news.zen­.co.uk...> Hi,>
I've got an impact driver to remove those stubborn screws and nuts 'n
bolts,> but I'm not sure if I'm using it correctly (the instructions provided were> very, very vague).>
It's made by Draper. On the neck of it there is a marking <- L - R ->,> which I presume refers to the handedness of the thread being undone, but
I'm> not sure if it's the head or the body if the driver that should be rotated> in the direction of the arrow.>
When in operation (ie being struck by hammer), should the impact driver> handle be held still, or should torque be applied to it in the direction> that you want the screw/nut/bolt to turn in (usually anti-clockwise).


You have to preset it for the direction you wish it to rotate. L or R
With the bit or socket held rigid, the handle part, can be pushed and
rotated in either direction.
To unscrew, you'd push and rotate it anticlockwise. Position 'L', and hold
it in that position, whilst you hit it.
What kind of hammer's best? A light-ish one or a lump?

Depends on what you wish to screw or unsrew. A solid chassis nut, a big
hammer. Smaller screw, smaller hammer or a lighter tap with the big one.
Mike.

Add comment
Conor Turton 12 April 2005 14:07:52 [ permanent link ]
 In article <425b87fa$0$26349$d­b0fefd9@news.zen.co.­uk>, Iain McLaren
says...
What kind of hammer's best? A light-ish one or a lump?>
Lump hammer. Bigger the better. You can hit it all day with a claw
hammer sized one and nothing will happen.


--
Conor

"Of all the things I've lost, I miss my mind the most." O.Osbourne.
Add comment
Mike G 12 April 2005 22:18:07 [ permanent link ]
 
"Conor Turton" <conor@conorturton.­com> wrote in message
news:MPG.1cc5ae54d8­e8ea799897bb@news.in­dividual.net...> In article <425b87fa$0$26349$d­b0fefd9@news.zen.co.­uk>, Iain McLaren> says...>
What kind of hammer's best? A light-ish one or a lump?> >
Lump hammer. Bigger the better. You can hit it all day with a claw> hammer sized one and nothing will happen.

Not so.
Slotted, crosshead, are torx screws, are often too tight to keep enough
pressure on the tip, with a hand driver, to prevent them slipping and
damaging the drive part of the screw.
An impact driver doesn't need hitting with a lump hammer to free such
screws.
In fact using a heavy hammer to loosen, say the screws on a door catch,
which can be very tight, could result in damage to the door pillar.
IME an ordinary 1/2 lb hammer is quite heavy enough to loosen such screws.
Mike.

Add comment
Shazzbat 12 April 2005 22:56:36 [ permanent link ]
 
"Willy Eckerslyke" <oss108no_spam@bang­or.ac.uk> wrote in message
news:d3g25a$434$1@f­antastix.bangor.ac.u­k...> Iain McLaren wrote:>
I've got an impact driver to remove those stubborn screws and nuts 'n
bolts,> > but I'm not sure if I'm using it correctly (the instructions provided
were> > very, very vague).>
I thought this was going to be a thread about Volvo parking.>
It's made by Draper. On the neck of it there is a marking <- L - R ->,> > which I presume refers to the handedness of the thread being undone, but
I'm> > not sure if it's the head or the body if the driver that should be
rotated> > in the direction of the arrow.>
Press it against a hard surface and you'll see the head trying to rotate> in whichever direction it's set for.>
When in operation (ie being struck by hammer), should the impact driver> > handle be held still, or should torque be applied to it in the direction> > that you want the screw/nut/bolt to turn in (usually anti-clockwise).>
I usually apply a little torque just to take up any slack. Don't hold it> too tightly though - and wear thick gloves!>
What kind of hammer's best? A light-ish one or a lump?>
Biggest one you've got, is my suggestion, but I'm not a nengineer.

TIP - Whatever hammer you use, hold the impact driver so that your thumb is
pointing towards the car, not towards the hammer. This way, when you miss,
you'll hit the fleshy part of your hand, not the knuckles of your thumb. It
hurts far less.

Trust me, I know:-(­

Steve


Add comment
Mike G 12 April 2005 23:25:09 [ permanent link ]
 
"Mike G" <metier@lycos.co.uk­> wrote in message
news:425c10e2$0$605­8$892e7fe2@authen.wh­ite.readfreenews.net­...>
"Conor Turton" <conor@conorturton.­com> wrote in message> news:MPG.1cc5ae54d8­e8ea799897bb@news.in­dividual.net...> > In article <425b87fa$0$26349$d­b0fefd9@news.zen.co.­uk>, Iain McLaren> > says...> >
What kind of hammer's best? A light-ish one or a lump?> > >
Lump hammer. Bigger the better. You can hit it all day with a claw> > hammer sized one and nothing will happen.

Oops!
Meant to say :-> Slotted, crosshead, 'and' torx screws,
Mike.

Add comment
Shazzbat 13 April 2005 00:13:32 [ permanent link ]
 
"Carl Bowman" <carlbowmanwithouts­pam@gmx.co.uk> wrote in message
news:3c1j01F6lrnapU­1@individual.net...>­ "Willy Eckerslyke" <oss108no_spam@bang­or.ac.uk> wrote in message> news:d3g25a$434$1@f­antastix.bangor.ac.u­k...> > I thought this was going to be a thread about Volvo parking.>
Shurely French parking?>
There's a school of motoring called Impact in the Bournemouth area. I've
always considered it a little ill-advised.

Steve


Add comment
Guy King 13 April 2005 00:56:21 [ permanent link ]
 The message <d3ha6g$gfr$1@newsg­3.svr.pol.co.uk>
from "shazzbat" <shazzbat@spamlessn­ess.co.uk> contains these words:
There's a school of motoring called Impact in the Bournemouth area. I've> always considered it a little ill-advised.

Started round Southall. Very sucessful - and not a name you'll forget in
a hurry.

The one that worried me more was in Greys Inn Road "Escuolo Guido Italiano".

--
Skipweasel.
In the beginning was the word.
And the word was Aardvark.


Add comment
Conor Turton 13 April 2005 01:07:57 [ permanent link ]
 In article <425c10e2$0$6058$89­2e7fe2@authen.white.­readfreenews.net>,
Mike G says...>
"Conor Turton" <conor@conorturton.­com> wrote in message> news:MPG.1cc5ae54d8­e8ea799897bb@news.in­dividual.net...> > In article <425b87fa$0$26349$d­b0fefd9@news.zen.co.­uk>, Iain McLaren> > says...> >
What kind of hammer's best? A light-ish one or a lump?> > >
Lump hammer. Bigger the better. You can hit it all day with a claw> > hammer sized one and nothing will happen.>
Not so.> Slotted, crosshead, are torx screws, are often too tight to keep enough> pressure on the tip, with a hand driver, to prevent them slipping and> damaging the drive part of the screw.

I think that comes under the heading of "Use the right size tip".


--
Conor

"Of all the things I've lost, I miss my mind the most." O.Osbourne.
Add comment
Derek 13 April 2005 02:03:53 [ permanent link ]
 
"Mike G" <metier@lycos.co.uk­> wrote in message
news:425c10e2$0$605­8$892e7fe2@authen.wh­ite.readfreenews.net­...>
"Conor Turton" <conor@conorturton.­com> wrote in message> news:MPG.1cc5ae54d8­e8ea799897bb@news.in­dividual.net...> > In article <425b87fa$0$26349$d­b0fefd9@news.zen.co.­uk>, Iain McLaren> > says...> >
What kind of hammer's best? A light-ish one or a lump?> > >
Lump hammer. Bigger the better. You can hit it all day with a claw> > hammer sized one and nothing will happen.>
Not so.> Slotted, crosshead, are torx screws, are often too tight to keep enough> pressure on the tip, with a hand driver, to prevent them slipping and> damaging the drive part of the screw.> An impact driver doesn't need hitting with a lump hammer to free such> screws.> In fact using a heavy hammer to loosen, say the screws on a door catch,> which can be very tight, could result in damage to the door pillar.> IME an ordinary 1/2 lb hammer is quite heavy enough to loosen such screws.> Mike.

more often than not for catch/hinge screws you can just use the ID as a big
screwdriver these days I'm getting lazy and just use the air impact kit
Derek


Add comment
Mike G 13 April 2005 02:08:55 [ permanent link ]
 
"Conor Turton" <conor@conorturton.­com> wrote in message
news:MPG.1cc64907dd­3feec39897c6@news.in­dividual.net...> In article <425c10e2$0$6058$89­2e7fe2@authen.white.­readfreenews.net>,> Mike G says...> >
"Conor Turton" <conor@conorturton.­com> wrote in message> > news:MPG.1cc5ae54d8­e8ea799897bb@news.in­dividual.net...> > > In article <425b87fa$0$26349$d­b0fefd9@news.zen.co.­uk>, Iain McLaren> > > says...> > >
What kind of hammer's best? A light-ish one or a lump?> > > >
Lump hammer. Bigger the better. You can hit it all day with a claw> > > hammer sized one and nothing will happen.> >
Not so.> > Slotted, crosshead, are torx screws, are often too tight to keep enough> > pressure on the tip, with a hand driver, to prevent them slipping and> > damaging the drive part of the screw.>
I think that comes under the heading of "Use the right size tip".

Even with the correct sized tip. The tighter the screw, the more pressure is
req'd to stop a screwdriver from slipping.
Often I can put enough pressure on the screwdriver to avoid it slipping, but
then the screw is so tight I still can't turn it. Using an impact driver
will usually turn the tightest screw, and avoid damaging it, but it doesn't
need the use of a lump hammer to achieve that.
Mike.

Add comment
Conor Turton 13 April 2005 03:12:09 [ permanent link ]
 In article <425c46fb$0$56170$8­92e7fe2@authen.white­.readfreenews.net>,
Mike G says...>
"Conor Turton" <conor@conorturton.­com> wrote in message> news:MPG.1cc64907dd­3feec39897c6@news.in­dividual.net...> > In article <425c10e2$0$6058$89­2e7fe2@authen.white.­readfreenews.net>,> > Mike G says...> > >
"Conor Turton" <conor@conorturton.­com> wrote in message> > > news:MPG.1cc5ae54d8­e8ea799897bb@news.in­dividual.net...> > > > In article <425b87fa$0$26349$d­b0fefd9@news.zen.co.­uk>, Iain McLaren> > > > says...> > > >
What kind of hammer's best? A light-ish one or a lump?> > > > >
Lump hammer. Bigger the better. You can hit it all day with a claw> > > > hammer sized one and nothing will happen.> > >
Not so.> > > Slotted, crosshead, are torx screws, are often too tight to keep enough> > > pressure on the tip, with a hand driver, to prevent them slipping and> > > damaging the drive part of the screw.> >
I think that comes under the heading of "Use the right size tip".>
Even with the correct sized tip. The tighter the screw, the more pressure is> req'd to stop a screwdriver from slipping.

Thats part of the idea of an impact driver...

Often I can put enough pressure on the screwdriver to avoid it slipping, but> then the screw is so tight I still can't turn it. Using an impact driver> will usually turn the tightest screw, and avoid damaging it, but it doesn't> need the use of a lump hammer to achieve that.

Yes it does unless you want to have to bray holy hell out of it.


--
Conor

"Of all the things I've lost, I miss my mind the most." O.Osbourne.
Add comment
Mike G 13 April 2005 03:31:36 [ permanent link ]
 
"Conor Turton" <conor@conorturton.­com> wrote in message
news:MPG.1cc66625f0­be64cb9897d1@news.in­dividual.net...> In article <425c46fb$0$56170$8­92e7fe2@authen.white­.readfreenews.net>,>­ Mike G says...> >
"Conor Turton" <conor@conorturton.­com> wrote in message> > news:MPG.1cc64907dd­3feec39897c6@news.in­dividual.net...> > > In article <425c10e2$0$6058$89­2e7fe2@authen.white.­readfreenews.net>,> > > Mike G says...> > > >
"Conor Turton" <conor@conorturton.­com> wrote in message> > > > news:MPG.1cc5ae54d8­e8ea799897bb@news.in­dividual.net...> > > > > In article <425b87fa$0$26349$d­b0fefd9@news.zen.co.­uk>, Iain
McLaren> > > > > says...> > > > >
What kind of hammer's best? A light-ish one or a lump?> > > > > >
Lump hammer. Bigger the better. You can hit it all day with a claw> > > > > hammer sized one and nothing will happen.> > > >
Not so.> > > > Slotted, crosshead, are torx screws, are often too tight to keep
enough> > > > pressure on the tip, with a hand driver, to prevent them slipping
damaging the drive part of the screw.> > >
I think that comes under the heading of "Use the right size tip".> >
Even with the correct sized tip. The tighter the screw, the more
pressure is> > req'd to stop a screwdriver from slipping.>
Thats part of the idea of an impact driver...>
Often I can put enough pressure on the screwdriver to avoid it slipping,
then the screw is so tight I still can't turn it. Using an impact driver> > will usually turn the tightest screw, and avoid damaging it, but it
doesn't> > need the use of a lump hammer to achieve that.>
Yes it does unless you want to have to bray holy hell out of it.

All I can say is that it works for me, and I use my ID almost on a daily
basis, doing machine maintenance.
Mike.

Add comment
Iain McLaren 13 April 2005 12:51:59 [ permanent link ]
 Thanks for all the info - I'll bear it in mind next time I'm using it!

Cheers,

Iain


Add comment
Chris Bolus 13 April 2005 22:06:15 [ permanent link ]
 On Tue, 12 Apr 2005 22:03:53 GMT, "Derek" <delwattsspamnoman@­cwcom.net>
wrote:
more often than not for catch/hinge screws you can just use the ID as a big>screwdriver these days I'm getting lazy and just use the air impact kit>Derek>
Good point. I don't know what I did before I bought an air kit.
--
Regards, Chris (Please take out my car to reply by email)
----1961 Austin A40 Farina----1966 Triumph Herald Estate---
---1967 Riley Elf---1965 Hillman Minx---1969 Morris Minor--
-1972 Mini Clubman estate--1957 Standard 8--1979 Ford Capri
********** Please don't email in HTML! **********
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CarGuru > Open discussion > Impact drivers 13 April 2005 22:06:15
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