I got this set a while ago, probably in the early 1980's. It's a Sony combo
screwdriver and bit. The photos are he

http://webpages.charter.net/mrfixite...crewdriver.jpg

http://webpages.charter.net/mrfixite...s/Sony-bit.jpg

The question is, how does the bit lock into the driver? There is nothing to
twist, turn, or tighten. For years, I just used masking tape to hold it
together. Then today, I decided to search the net for answers. I found that
MCM still sells this. There is a picture he

http://www.mcmelectronics.com/produc...2-01-/32-18290

It's obvious that my driver has an extra piece in the handle. So what's the
story here?

Thanks for your reply.
--

David Farber
Los Osos, CA

David Farber wrote:

I got this set a while ago, probably in the early 1980's. It's a Sony combo
screwdriver and bit. The photos are he

http://webpages.charter.net/mrfixite...crewdriver.jpg

http://webpages.charter.net/mrfixite...s/Sony-bit.jpg

The question is, how does the bit lock into the driver? There is nothing to
twist, turn, or tighten. For years, I just used masking tape to hold it
together.


There should be a spring plate in the metal part of the handle. That
looks like a low grade version of the Xcelite 99 series tools.
http://www.cooperhandtools.com/brands/xcelite/index.cfm?model_list=1&att_id=XCE003%20%20%20%20%2 0%20%20%20%20%20%20%20&att1=Service%20Tool%20Kits% 20and%20Sets%20%20%20%20&att2=Series%2099?reg;%20S ervice%20Kits


Then today, I decided to search the net for answers. I found that
MCM still sells this. There is a picture he

http://www.mcmelectronics.com/produc...2-01-/32-18290


These pictures are so crappy I can't see any details.


It's obvious that my driver has an extra piece in the handle. So what's the
story here?


What extra part? The wood is just a cheap and simple insulating
holder for the collet, which holds the bit.


--
You can't have a sense of humor, if you have no sense.

Michael A. Terrell wrote:
David Farber wrote:

I got this set a while ago, probably in the early 1980's. It's a
Sony combo screwdriver and bit. The photos are he

http://webpages.charter.net/mrfixite...crewdriver.jpg

http://webpages.charter.net/mrfixite...s/Sony-bit.jpg

The question is, how does the bit lock into the driver? There is
nothing to twist, turn, or tighten. For years, I just used masking
tape to hold it together.


There should be a spring plate in the metal part of the handle.
That looks like a low grade version of the Xcelite 99 series tools.
http://www.cooperhandtools.com/brands/xcelite/index.cfm?model_list=1&att_id=XCE003%20%20%20%20%2 0%20%20%20%20%20%20%20&att1=Service%20Tool%20Kits% 20and%20Sets%20%20%20%20&att2=Series%2099?reg;%20S ervice%20Kits


Then today, I decided to search the net for answers. I found that
MCM still sells this. There is a picture he

http://www.mcmelectronics.com/produc...2-01-/32-18290


These pictures are so crappy I can't see any details.


It's obvious that my driver has an extra piece in the handle. So
what's the story here?


What extra part? The wood is just a cheap and simple insulating
holder for the collet, which holds the bit.

The picture at MCM shows the handle without the (extra?) collet. I've
inspected the collet in my handle and there doesn't seem to be any provision
to hold a spring plate. I have the Xcellite 99 tools and I can see how that
handle has a plate on each side to grab on to the bit.

Thanks for your reply.
--

David Farber
Los Osos, CA

On Aug 24, 9:28*pm, "David Farber" wrote:
I got this set a while ago, probably in the early 1980's. It's a Sony combo
screwdriver and bit. The photos are he

http://webpages.charter.net/mrfixite...crewdriver.jpg

http://webpages.charter.net/mrfixite...s/Sony-bit.jpg

The question is, how does the bit lock into the driver? There is nothing to
twist, turn, or tighten. For years, I just used masking tape to hold it
together. Then today, I decided to search the net for answers. I found that
MCM still sells this. There is a picture he

http://www.mcmelectronics.com/produc...M-7-700-752-01...

It's obvious that my driver has an extra piece in the handle. So what's the
story here?

Thanks for your reply.
--

David Farber
Los Osos, CA

The semicircular groove around the upper part of the bit suggests a
sprung ball inside the collet, and this has fallen out, as happens
regularly with modern equivalents.

Alternatively, maybe there was a magnet at the bottom of the collet
and this has fallen out, demagnetised, or got pushed in too deep.

Either ball or magnet may have been accidentally omitted in
manufacture.

Just my three-ha'p'th.

Chris

wrote:
On Aug 24, 9:28 pm, "David Farber" wrote:
I got this set a while ago, probably in the early 1980's. It's a
Sony combo screwdriver and bit. The photos are he

http://webpages.charter.net/mrfixite...crewdriver.jpg

http://webpages.charter.net/mrfixite...s/Sony-bit.jpg

The question is, how does the bit lock into the driver? There is
nothing to twist, turn, or tighten. For years, I just used masking
tape to hold it together. Then today, I decided to search the net
for answers. I found that MCM still sells this. There is a picture
he

http://www.mcmelectronics.com/produc...M-7-700-752-01...

It's obvious that my driver has an extra piece in the handle. So
what's the story here?

Thanks for your reply.
--

David Farber
Los Osos, CA

The semicircular groove around the upper part of the bit suggests a
sprung ball inside the collet, and this has fallen out, as happens
regularly with modern equivalents.

Alternatively, maybe there was a magnet at the bottom of the collet
and this has fallen out, demagnetised, or got pushed in too deep.

Either ball or magnet may have been accidentally omitted in
manufacture.

Just my three-ha'p'th.

Chris

Thanks Chris. Makes sense to me. (-:

--

David Farber
Los Osos, CA

In article ,
"David Farber" wrote:

I got this set a while ago, probably in the early 1980's. It's a Sony combo
screwdriver and bit. The photos are he

http://webpages.charter.net/mrfixite...crewdriver.jpg

http://webpages.charter.net/mrfixite...s/Sony-bit.jpg

The question is, how does the bit lock into the driver?

I think that what you're calling a collet is spring-loaded. You would
pull it back towards the handle to insert or release the bit. Possibly
rusted and frozen up.