When ordering custom decimal size please specify 4 digit size in comments when checking out example .2568
Coolant outlets in each flute. Polished flutes; flute long carbide on .2841" tool diameter and larger.Left spiral flutes should not be used on blind holes.Tool diameter tolerance plus .0003", minus .0000".
Flute coolant outlets for reaming through holes as chips are flushed forward through the hole being reamed.Improves hole finish and permits higher feeds & speeds with longer tool life.
Decimal sizes priced below.Metric tool diameter.Cutter diameter reduced for step or pilot.End chamfer other than 45°.End cutting or corner radius.Increased/decreased circular margin.Increased/decreased tool diameter back taper.Shortened shank or reduced shank diameter.Flat(s) or tang on shank.