Thread size for WEN adjustible chuck

[danasummers1]

Does anyone know the thread size for the WEN 2305-KC Keyless Rotary Tool Chuck and where I can purchase a die to cut the same size threads on round stock?

 

[L Vanice]

Is it different from the Dremel chuck thread?

Larry

 

[danasummers1]

Larry what I understand that the WEN adjustable chuck will not fit the Dremel.

 

[L Vanice]

It was not very difficult to find your answer on the Amazon Q&A section for the Wen chuck.

"Question:
Will this fit Dremel tool?
Answer:
NO IT WILL NOT FIT DREMEL OR ANY OTHER TOOLS UNLESS THEY HAVE AN M8 x 0.85mm Thread
I have been searching for hours, until I found that the WEN 2305/2307 Collet thread is an M8 x 0.85mm (30 threads per in) -"

That is very close to 5/16-30. Victor has the die for $11.50.

5/16-30 Special Pitch Round Die, 1" Outside Diameter - High Speed Steel

5/16-30 Special Pitch Round Die, 1" Outside Diameter - High Speed Steel

www.victornet.com

Larry

 

[danasummers1]

Thank you.

 

[danasummers1]

How is 30 threads per inch dervived from M8 x 0.85mm? Thanks

 

[L Vanice]

1 inch = 25.4 mm.

25.4 divided by .85 = 29.88 threads per inch

Larry

 

[danasummers1]

It was not very difficult to find your answer on the Amazon Q&A section for the Wen chuck.

"Question:
Will this fit Dremel tool?
Answer:
NO IT WILL NOT FIT DREMEL OR ANY OTHER TOOLS UNLESS THEY HAVE AN M8 x 0.85mm Thread
I have been searching for hours, until I found that the WEN 2305/2307 Collet thread is an M8 x 0.85mm (30 threads per in) -"

That is very close to 5/16-30. Victor has the die for $11.50.

5/16-30 Special Pitch Round Die, 1" Outside Diameter - High Speed Steel

5/16-30 Special Pitch Round Die, 1" Outside Diameter - High Speed Steel

www.victornet.com

Larry

Larry if I use the 5/16-.30 die what diameter round stock metal solid tubing would I used to cut the threads?

 

[Joe Gwinn]

How is 30 threads per inch derived from M8 x 0.85mm? Thanks

It isn't, but they are close. But not close enough to interwork without jamming unless the fit is quite loose. I'd test this with nuts and bolts from a local hardware store.

If Wen uses M8x 0.85 mm, it's best to use exactly that.

 

[L Vanice]

A 5/16 inch thread can be cut on stock that is 5/16 inch diameter. Some material is easier to thread with a die than other materials. Experience helps, but keep in mind that a chamfer on the end of the stock is a minimum requirement.

I wonder if Joe Gwinn, whose location is stated as Boston, MA area, really has a local hardware store that stocks 5/16-30 nuts and bolts.

If that Amazon reviewer gave accurate information, I have great confidence that a Wen chuck will screw on to a 5/16-30 thread without jamming until the internal shoulder hits the end of the male thread. I have less confidence that it is a good idea, but the idea was never explained.

Larry

 

[JohnMartin]

Larry if I use the 5/16-.30 die what diameter round stock metal solid tubing would I used to cut the threads?

Good luck finding that solid tubing in 5/16. Or in any other size.

 

[Joe Gwinn]

I wonder if Joe Gwinn, whose location is stated as Boston, MA area, really has a local hardware store that stocks 5/16-30 nuts and bolts.

Hmm. Good point. Probably not, as 5/16-30 is not a standard size. So, we are back to M8x0.85, which is also not so common, judging by what McMaster carries. So it's a custom job either way, so might as well make it exactly M8x0.85, perhaps starting with 5/16" (7.94mm) stock, perhaps oversize.

 

[Scottl]

At this point I must ask; Why are you so determined to put a Wen chuck on a shaft?

If it's to make a custom arbor I'd pick a more common size.

If it's to make a wide range pin vise such tools already exist such as the one from General.

M8 x 0.85 would be a special order die as it is a non-standard size.

 

[Scottl]

Hmm. Good point. Probably not, as 5/16-30 is not a standard size. So, we are back to M8x0.85, which is also not so common, judging by what McMaster carries. So it's a custom job either way, so might as well make it exactly M8x0.85, perhaps starting with 5/16" (7.94mm) stock, perhaps oversize.

No lathe, no chance. The die would be so expensive that it would be cheaper to cannibalize a Wen tool for the shaft.

 

[Joe Gwinn]

Victor Machine has 5/16-40 HSS taps for $12 - model 5/16-40 HSS Special Tap, 0307-0022.

https://www.victornet.com/subdepartments/Special-Pitch-Taps-up-to-1/2-inch/1260.html

Dies too:

https://www.victornet.com/detail/RD-5/16-40-B.html

 

[L Vanice]

Victor Machine has 5/16-40 HSS taps for $12 - model 5/16-40 HSS Special Tap, 0307-0022.

https://www.victornet.com/subdepartments/Special-Pitch-Taps-up-to-1/2-inch/1260.html

Dies too:

https://www.victornet.com/detail/RD-5/16-40-B.html

But what do 5/16-40 taps and dies have to do with this thread?

Larry

 

[Joe Gwinn]

But what do 5/16-40 taps and dies have to do with this thread?

Larry

Real close to M8-0.85, which is much discussed.

Victor has metric taps and dises, but not exactly M8x0.85, but I'd get a quote for sure.

 

[L Vanice]

Real close to M8-0.85, which is much discussed.

Victor has metric taps and dises, but not exactly M8x0.85, but I'd get a quote for sure.

No, not nearly as close as 5/16-30 (M7.94 x .847), which was discussed thoroughly above.

Larry

 

[Joe Gwinn]

I've lost the bead. Aren't we trying to achieve M8x0.85, which sounds like something Victor (and others) can easily do, as they are already close?