Here is a 1962 Ingersoll Cutting Tools Speed Feed Milling Metric Carbide Slide Ruler Chart. Good used condition but does have crack in plastic. Still very usable.
This auction is for a AT 16C2540 Counter bore bit with four flutes and a solid pilot Cutting diameter, 1 5/16" Shank, 3/4" and pilot is 5/8" Please look at the pictures carefully before you bid. The pictures show exactly
[1] 6-inch spring dividers with adjusting screw Markings: None Condition: good as new; sharp points; no wear, rust or pitting [2] 6-inch steel ruler Markings: "No 600", '"THE L.S.S.CO." "ATHOL MASS. U.S.A." "Tempered No 4" Scales: 1/32 & 1/64 inch on marked side; 1/8 and 1/16 inch on other side; Condition: medium;
24" Combination Square Protractor 4 Pc Set Ruler New Stainless Steel Rule with SAE and Metric Graduations Precision ground cast iron square head, center head and protractor Brass adjustment screws SAE rule graduations 1-16" and 1/8" Metric rule graduations: centimeters
This listing is for a rule with cosmetic imperfections. This ruler is manufactured in the USA by Products Engineering Corporation (PEC Tools), one of the last US precision manufacturing companies. PEC quality standards are quite high.
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