Why is this hole drilled into the slide?

[stoneypete]

I asked this question elsewhere and after 105 hits on my post, no answer. I'll ask here too.

I had bought the M1911 you can see in my signature line and noticed a hole in the slide in the disconnect notch. Having never seen one before, I just chalked it up to "bubba" and never gave it another thought.

Now I've seen another. (This is not my pic and I wish I could remember who's it is so I could give credit.) Any help as to why this hole would be drilled?

http://i11.photobucket.com/albums/a153/stoneypete/US%20Military/M1911%20COLT/317186601.jpg


I can take more pics of my own slide if needed.

[Mark Hitchcock]

All slides were made that way until 1937 serial 710001. See Clawson's little book, page 35.

[stoneypete]

All slides were made that way until 1937 serial 710001. See Clawson's little book, page 35.
Thank you. I'll check this out tonight.

[John]

All slides were made that way until 1937 serial 710001. See Clawson's little book, page 35.
With a hole in the disconnector notch?!?! Man, I have to re-read that book!!!

[stoneypete]

With a hole in the disconnector notch?!?! Man, I have to re-read that book!!!
The irony of the answer to my question is I am on page 30 of Clawsons. Only 5 pages from my answer.

[Doran]

Likely there as a tooling hole or to relieve material for the woodruff cutter that generates the slot.