Drill Bits - Augers - Taps - Chamfer  /  Cobalt Drill Bits - Fractional
 

7/32
7/32" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$3.50
15/64
15/64" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$3.50
1/4
1/4" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$3.95
17/64
17/64" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$4.50
9/32
9/32" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$4.50
19/64
19/64" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$4.50
5/16
5/16" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$6.25
21/64
21/64" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$6.50
11/32
11/32" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$6.75
3/8
3/8" COBALT Heat Resistant Jobber Heavy Duty Drill Bits
$8.75

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Cobalt Jobber Drill Bits, Fractional, Drill America

Cobalt Jobber Drills Key Features.

  • Manufactured to National Aerospace Standard 907.
  • Made of Heat Resistant Cobalt
  • They Display Higher Red Hardness which Permits Speeds up to 30% Greater than High Speed Steel Drills.
  • Especially Effective in Drilling Tough, High Tensile Strength Materials like PH Stainless Steel, Inconel, and Titanium.
  • The 135° Split Point is Self-Centering and Reduces Thrust. Sizes Smaller than 1/16 Have the 118° Standard Point.

Our Cobalt Drill Bits are Designed to Drill Through the Hardest Materials Such as Stainless Steel, Spring Steel, and Titanium. Includes a 135° Split-Point that will Not Walk or Wander at the Starting Surface. A Combination of High Speed Steel and a Heavy-Duty Web Allows the Bit to Run Cool, Keeping the Cutting Edge Sharper Longer.