Home » Tender for Supply Of S/c Hole Mills With A Diameter Of 12.8 Mm, A Flute Length Of 60 Mm, An Overall Length Of 100 Mm, A Shank Diameter Of 14 Mm, And T-4 Tialn Coating. The Tools Are Expected To Have An Average Tool Life Of At Least 100 Components Per Tool For Hole S, India