Sierra Tranmossions

[LL Woodworks]

I have a number of Sierra transmissions - Any suggestions as to how to make good use of them? - Thanks for the ideas.

 

[MarkD]

Awhile ago we had a group buy for 8.4mm x1 taps that matched the threads on the Sierra transmissions. You can make some nice "almost" kitless ball point pens with them. I believe mredburn was selling the taps at one time also. Here is an example of a pen made with a sierra transmission using Aluminum.

 

[mredburn]

Although I still sell them, INdy Pen dance currently has the 8.5 x 1 for sale cheaper. THe 8.5 will work just fine for you.

 

[IPD_Mr]

We have found that there are a couple different sizes of transmissions out there. Many of the aftermarket transmissions will not fully screw into a Sierra. These after markets, I am pretty sure will only work with a M8.4 x 1 tap. If they are leftovers from a Sierra or Wall Street then you should be fine with a M8.5 x 1

 

[LL Woodworks]

Thanks all - I have an 8.5 x 1 and think these are "Sierra" Transmissions however mredburn I've sent you a PM regarding the 8.4 x 1. - Thanks again everyone for the help.

 

[Jgrden]

This is the dummy asking questions. I like working with the cigar pens. Will the 8.5 that you were speaking off work on the transmission purchased for cigar pens??

 

[sbell111]

I don't believe that the cigar transmission is the same thread size as the sierra one.

 

[sbell111]

We have found that there are a couple different sizes of transmissions out there. Many of the aftermarket transmissions will not fully screw into a Sierra. These after markets, I am pretty sure will only work with a M8.4 x 1 tap. If they are leftovers from a Sierra or Wall Street then you should be fine with a M8.5 x 1

Are those the taps that I sold you?

I made several .308 pens using Rizheng sierra transmissions. The M8.4 tap did the job just fine.