Greenfield Industries Chicago-Latrobe® 57850 Standard 29 Piece Jobber Drill Bit Set, 1/16 to 1/2" by 64ths, 135 Deg, Split Point, Cobalt Steel, Amber Oxide
Greenfield Industries Chicago-Latrobe® Standard Jobber Drill Bit Set, Measuring System: SAE, List Number: 550, Sizes Included: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 19/64, 5/16, 21/64, 11/32, 23/64, 3/8, 25/64, 13/32, 27/64, 7/16, 29/64, 15/32, 31/64 and 1/2"" With Metal Case, Fractional Size: 1/16 to 1/2"" by 64ths, 135 Deg Point, Split Point, Cobalt Steel, Amber Oxide, Heavy Duty Grade, Applicable Material: Stainless Steel, Tool Steel, Alloy Steel and Titianium, For Drilling in Tough, High-tensile and Workhardening Materials Under Extreme Operating Conditions, 29 Piece, National Aerospace Standards (NAS) 907 Type J
- Manufactured to NAS 907 Type J geometry aerospace specifications
- Heavy-duty construction for drilling in tough, high-tensile, and workhardening materials under extreme operating conditions
- Manufactured from premium cobalt high-speed steel, increasing hot hardness and extending drill wear life
- 135 deg P3 split point is self-centering for reduced thrust and easier penetration
- Metric drills are manufactured to DIN 338 and flute length specifications
- Straw, titanium nitride (Tin), and titanium aluminum nitride (Tialn) finishes standard
- Alternate coatings available as stock modifications