Rear Axle Breather Connector

[peak4Participant @peak4]

No problem, happy to assist.
No charge, but pass a favour onto someone else; It just makes the world a better place to live if we all help each other somehow.

I think I'd be bothered about breaking the smaller drill if I'd had to do it without a lathe.

I picked the first drill, 3.2mm, purely because when I checked through my box, that one was brand new,.
As such, less chance of it wandering, and also it cut properly, so less chance of work hardening the stainless.

Since the 3.2 wasn't long enough to go all the way through without going beyond the flutes, I did swap ends, and obviously started it off, at each end, with a centre drill (In this case I actually used a carbide spotting drill as it's more rigid.)

After the initial turning down, threading, and part drilling 3.2mm in the 3 jaw, I swapped to a collet so I could reverse the workpiece and hold it concentrically without damaging the thread.
Next turn down to 7mm, drill 3.2mm and open out to 4mm in one pass, as the drill was long enough.

I wasn't sure whether to shape the M7 end with a wider rounded bit on the tip, but figured that since it's not a pressure application, it's not going to blow off.

All the best
Bill

Edited By peak4 on 15/10/2021 22:19:09

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