American Sun USA made 5/8" end mill Holder 6" Extension MOD-913-4 Made in UK The packages are marked with

The packages are marked with the date of 1978 when they were made

screws and even piano wireThree-zone comfort grips are contoured for optimal cushion and controlSpecially coated for superior rust-resistance and longer tool lifeThey are fitted with industry-leading

The tapered shank has a few specs of oxidation or discoloration  as can be seen in the photo

Diamond Grit delivers up to 30x longer life than standard blades

finely serrated tips with a pipe-grip

American Sun USA made 5/8" end mill Holder 6" Extension MOD-913-4 Made in UK The packages are marked withAmerican Sun Inc USA made (a small American firm that made the highest quality tooling) 5 8" end mill holder 6" extension , Item No. MOD 913 4 Extends end mills for hard to reach areas use for single or double ended end mills Precision ground to assure concentricity Manufactured in the US. This top of the line tool is for all CNC or standard milling machines, manufactured of high quality alloy materials, heat treated to 60RC and precision ground for