Jobber Drill, Standard, List Number 3780, Number of Pieces 1, Heavy Duty Grade, Cobalt Steel, Black Oxide Finish, Split Point, Drill Point (Deg.) 135, Fractional Size (In.) 1/2, Decimal Equivalent 0.5000, Flute Length (In.) 2-1/4, Flute Length (mm) -, Overall Length (In.) 6, Overall Length (mm) -, Shank Dia. (In.) 1/2, Shank Dia. (mm) 12.70, For Alloy, Carbon, Stainless And Tool Steel, Meets/Exceeds -, Sizes Included -
- California Proposition 65 Warning: This product contains a chemical known to the State of California to cause cancer.
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