Metal Drill Bits

Fractional Double-End Black Oxide Drill Bits (Bulk)

For rotary drills/drivers

Drilling with double lifetime

  • Fractional Double-Ended Black Oxide Drill Bit delivers drilling with double the lifetime
  • Speed helix design for three times faster drilling than standard bits
  • Last 50% longer than high-speed steel
  • Easier drilling, reduced heat and extended drill bit life
  • Available in jobber length, stubby length, extended length (aircraft), 1/2 In. reduced shank (Silver and Deming)
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Cast Iron
Select options

Diameter (D) Inch 2 options

Total length (L2) Inch 2 options

Choose a pack size 12

Fractional Double-End Black Oxide Drill Bits (Bulk)
For rotary drills/drivers

Fits tools of most brands


Cylindrical shank compatible with three-jaw drill chucks.


The Fractional Double-Ended Black Oxide Drill Bit delivers double the drilling lifetime. The bit is usable at both ends due to two drill bit tips and flutes. It is ideally suited for assembly work, car body work and metal machining. It can also be used for drilling rivets or thread holes in thin-walled materials. Use this bit when drilling non-ferrous metal, sheet steel and plastics.

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Product Options

Available product options: 2

Part number Diameter (D) Inch Working length (L1) Inch Total length (L2) Inch Pack quantity
BL6137 5/32 1/2 2 5/32 12
BL6135 1/8 1/2 2 1/8 12

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