Forging or Punching a 25mm Hex hole for a wrench
 

I would like to have a 25mm Box End Wrench. 6 sided. About 14" in
length. The opening would be about =BD" thick.

Does anyone here do this or can fill me in on the process?

All I think I know is that it would be punched out when the piece is
red hot and then the wrench would be finished and then heat treated.
But I know nothing of how the punching part of the process is
accomplished.=20

Thanks
Bob AZ

On 21 May 2005 15:36:43 -0700, "Bob AZ" wrote:

I would like to have a 25mm Box End Wrench. 6 sided. About 14" in
length. The opening would be about ½" thick.

Does anyone here do this or can fill me in on the process?

All I think I know is that it would be punched out when the piece is
red hot and then the wrench would be finished and then heat treated.
But I know nothing of how the punching part of the process is
accomplished.

Thanks
Bob AZ

Unless you have the dies..its probably going to be easier to drill a
hole to the minor diameter, then trace a hex around it and hit it with
a file, filing to the lines.

Gunner

"Considering the events of recent years,
the world has a long way to go to regain
its credibility and reputation with the US."
unknown

Unless you have the dies..its probably going to be easier to drill a
hole to the minor diameter, then trace a hex around it and hit it with
a file, filing to the lines.


An EDM works great for this also. I made a couple special impact sockets out
of S7 tool steel. Work just like store bought units, not as shiney though.

Karl

"Bob AZ" wrote in message
oups.com...
I would like to have a 25mm Box End Wrench. 6 sided. About 14" in
length. The opening would be about ½" thick.

Does anyone here do this or can fill me in on the process?

If you only need a special wrench why not just buy a box wrench and add
additional length to the handle? That would be a whole lot easier than
reinventing the wheel.

--

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.

I have made crude sockets by selcting an oversize pipe, heating it red on
the end then forging it around a sample nut. You could drill out an
oversize hole that would go around a nut then forge it down to fit the nut.
Pop the nut out and you have a crude hex.
Randy

"Bob AZ" wrote in message
oups.com...
I would like to have a 25mm Box End Wrench. 6 sided. About 14" in
length. The opening would be about ½" thick.

Does anyone here do this or can fill me in on the process?

All I think I know is that it would be punched out when the piece is
red hot and then the wrench would be finished and then heat treated.
But I know nothing of how the punching part of the process is
accomplished.

Thanks
Bob AZ

On Sat, 21 May 2005 23:56:21 GMT, "Karl Townsend"
remove .NOT to reply wrote:


Unless you have the dies..its probably going to be easier to drill a
hole to the minor diameter, then trace a hex around it and hit it with
a file, filing to the lines.


An EDM works great for this also. I made a couple special impact sockets out
of S7 tool steel. Work just like store bought units, not as shiney though.

Karl


Most folks (myself included) dont have an EDM. Well..I do have a big
assed Raycon if I wanted to bring it home...

Gunner

"Considering the events of recent years,
the world has a long way to go to regain
its credibility and reputation with the US."
unknown

For an asthetic reason I want to end up with a nice pretty wrench.
Bob AZ

Sounds good. I would have to find someone to forge this since forging
is not big if at all in S AZ.
Thanks for the idea.
Bob AZ

"Bob AZ" wrote in message
oups.com...
Sounds good. I would have to find someone to forge this since forging
is not big if at all in S AZ.
Thanks for the idea.
Bob AZ


Duck over to alt.crafts.blacksmithing and ask around.

You may be *very* surprised.!

A strong hex can be attained by cutting the hex hole with endmills. Look at
a Snap-On wrench or socket to see that the corners/points aren't just the
juncture of 2 flats, but instead, there is a radius formed outside the
dimension of the hex.

They claim that this feature makes more efficient use of the torque applied
to the tool, and that tools that use the corners/points of the hex actually
result in more frequent rounding of the fastener (or breakage of
cheaply-made tools).

A mill with a dro or a rotary table would be a fairly quick way to cut
accurate hex openings.

WB
..............

"Bob AZ" wrote in message
oups.com...
I would like to have a 25mm Box End Wrench. 6 sided. About 14" in
length. The opening would be about ½" thick.

Does anyone here do this or can fill me in on the process?

All I think I know is that it would be punched out when the piece is
red hot and then the wrench would be finished and then heat treated.
But I know nothing of how the punching part of the process is
accomplished.

Thanks
Bob AZ




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Have it drilled and reamed, then have it broached.

--Doug