Shopsmith Forums

Ed in Tampa wrote:

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image.jpeg

Not sure what this type of wrench is called but I have a ton of them from my computer days.
Anyone know what hey are called

"Bristol" wrench.

http://www.bristolwrench.com/


"THINK"

This site is very interesting reading on fastener head types and there uses.
https://en.wikipedia.org/wiki/List_of_screw_drives

JPG wrote:

Ed in Tampa wrote:

image.jpeg

image.jpeg

Not sure what this type of wrench is called but I have a ton of them from my computer days.
Anyone know what hey are called

"Bristol" wrench.

http://www.bristolwrench.com/


"THINK"

Squinting real hard at Ed's photos, and then looking at the Wikipedia article that ERlover cited, it appears to me that Ed's wrench is the "Polydrive" type, rather than the Bristol type. If it were a Bristol, I believe the protuding spline ridges on the wrench would be dovetail-shaped.

It easy to have a lot of some tools. Some are from the tools I had at work, some were from a "traveling" tool kit I use to have and still other are the ones I have collected in the shop over the years.

I recently changed out the little levers on my scroll saw for allen head screws. The screws happened to be a different size then the shopsmith "standard" so I ordered a 9" version that is just like the shopsmith ones which reaches from under the table. I also have a 6" version I use at the shopsmith I have set up as a drill press. For the drill press the shorter version is perfect.

I have a lot of really small allen wrenches that I needed at work but now never use. I'll keep them as they are in kits and who knows if something might come up where I might be able to use them. At some point the kids will have to pick and choose and come to think of it I bet I have some packed away in boxes from when I cleaned out my father-in-laws basement when he passed.

Anyway the heater is on in the garage and its above 40 out there so I'm going to go get a few things done out there.

Ed

Ed's (EIT) former employer used bristol screws.

JPG wrote:Ed's (EIT) former employer used bristol screws.

Thanks for the memory jog they are Bristol wrenches, I remember their name.

Yes they do have a dove tail spline. They are great al oat impossible to strip out.
I have a whole pouch of them from my old computer days.

Thanks again for the memory jog guys!

The wrench will twist/break before it will cam out.

Wow, I just looked back at the site I posted, that Bristol sure has allot of surface area.
Glad I could add to this all, I sure learned allot about fastener head drives.

Just checked out the Bristol wrench site... Why isn't this a standard for manufacturing? They seem extremely handy, but then again why do we still use Philips head and a flat head screw? Either way those Bristols are very nice, I wouldn't mind using those for when I take the easy way out and use hardware in my work...

@Beave, part is marketing, part is selling a new better product, even though it is not better, just as good but different. Innovation!!! Still like the Torx the best for screws, other then just a Hex for set screws.