Interesting find

[earlgo]

Thought all of you might be interested in this. This is the first printing in 1914. A lot of this information is still in the 56th edition printed in 1966.


This information is still in the 56th edition on page 114.


--earlgo

[ctwo]

I wonder how many of those are floating around?

[wlw-19958]

Hi There,

That table of cutting speeds is for old tool steel tools.
High Speed Steel speeds are at least double those speeds
(in some cases, two or three times the speed).

I wonder when the first edition was printed.

Good Luck!
-Blue Chips-
Webb

[earlgo]

wlw-19958:
I thought I had mentioned in my post that the cutting speed info had been updated, but somehow it flew to Cyberia.
In the front piece to the 56th edition it says copyright 1914, 1916,,,, etc. and this particular old copy only says copyright 1914, but it is the 15th edition. Soooo, anybody's guess until an earlier one is found.

--earlgo

[spro]

Then the earlier ones would be South Bend Machine Tool Company. Neat find.