Jobber Drill, Standard, List Number -, Number of Pieces 1, Heavy Duty Grade, Cobalt Steel, Straw Finish, Split Point, Drill Point (Deg.) 135, Fractional Size (In.) 21/64, Decimal Equivalent 0.3281, Flute Length (In.) 3-5/16, Flute Length (mm) -, Overall Length (In.) 4-5/8, Overall Length (mm) -, Shank Dia. (In.) 21/64, Shank Dia. (mm) 8.334375, For Cast Iron, High Temperature Alloys, Stainless Steel And Titanium, Meets/Exceeds -, Sizes Included -
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