Cobalt Heavy Duty Jobber Drill, Heavy Duty, List Number 550, Number of Pieces 1, Cobalt, Straw Finish, Split Point, Drill Point (Deg.) 135, Metric Size 2.5, Decimal Equivalent 0.0984, Flute Length (In.) 1-11/64, Flute Length (mm) 30.0, Overall Length (In.) 2-1/4, Overall Length (mm) 57.0, Shank Dia. (In.) 0.0984, Shank Dia. (mm) 2.5
Heavy-Duty Jobbers Length Cobalt Drills, 135
- List# 550, 2550, and 550TA drills meet/exceed National Aerospace Standards 907, Type J. List# 550ASP drills meet/exceed National Aerospace Standards 907, Type B and have a thinner web for hand/portable drilling. List# 3780 drills have a shorter flute length and extra-heavy web for rigid aircraft maintenance applications and a fast 40 helix for chip removal.
- Split point