American Sun USA made 5/8" end mill Holder 6" Extension MOD-913-4 Made in UK A - Opening (mm): 500

A - Opening (mm): 500 ( about 18")

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

Straight Shank

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

American Sun USA made 5/8" end mill Holder 6" Extension MOD-913-4 Made in UK A - Opening (mm): 500American 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