![]() |
#11
|
||||
|
||||
![]() I've used it over the years to find many oddball kingpins. I can't look till tomorrow when I get to the shop but if you want to let me know what the exact dimensions are I can poke around a bit and see what I can find...
__________________
Keith Measure twice and cut once...or...wait, was that the other way around? |
#12
|
||||
|
||||
![]()
What about using pre hardened 4140? I have a couple gun smithing books that reference it and it is supposed to be machinable in its hardened state, but it would be much tougher than anything you bought annealed.
https://www.mscdirect.com/product/details/70394572
__________________
Handcrafted Leather |
#13
|
||||
|
||||
![]() Quote:
Quote:
__________________
Bill in sunny Tucson I believe in gun control. Gun Control: The ability to consistently hit what you are aiming at. Weldor by choice, engineer by necessity. |
#14
|
||||
|
||||
![]() Quote:
__________________
Handcrafted Leather |
#15
|
||||
|
||||
![]() Quote:
I would say that 4140 pre-hard ( or HTSR as it's known up here) would be fine for your pins. It's tough but fully machinable. Insert tooling would be the best but brazed carbide or even HSS will work--just adjust feeds and speeds accordingly...
__________________
Keith Measure twice and cut once...or...wait, was that the other way around? |
#16
|
||||
|
||||
![]()
I think, the time or two I machined 4140 prehardened, I treated it more or less like stainless steel. Should get you in the ballpark as a start point anyway.
If in doubt, go slower to start and bump it up if it cuts ok. Sent from my iPhone using Tapatalk |
![]() |
Thread Tools | |
Display Modes | |
|
|