Metal Drill Bits

Extra Length (Aircraft) Black Oxide Drill Bits

For rotary drills/drivers

Extra Length Black Oxide Drill Bit is for drilling deep holes through metal with maximum precision

  • Drilling deep holes with maximum precision
  • For rotary drills/drivers
  • Cylindrical shank compatible with three-jaw drill chucks.
  • 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)

Materials

Steel
Cast Iron
Select options

Diameter (D) Inch 16 options

Working length (L1) Inch 2 options

Total length (L2) Inch 2 options

Choose a pack size 1


Extra Length (Aircraft) Black Oxide Drill Bits
from 
For rotary drills/drivers

Fits tools of most brands

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Cylindrical shank compatible with three-jaw drill chucks.

DRILLING DEEP HOLES WITH MAXIMUM PRECISION

Bosch black oxide bits offer superior durability, speed and selection for most general purpose applications. Best for cutting holes into metal and work equally well in wood and plastic drilling.

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Product Options

Available product options: 22

Part number Diameter (D) Inch Total length (L2) Inch Working length (L1) Inch Pack quantity
BL2651 3/8 6 4 1
BL2759 1/2 12 10 1
BL2631 1/16 6 4 1
BL2632 5/64 6 4 1
BL2633 3/32 6 4 1
BL2634 7/64 6 4 1
BL2635 1/8 6 4 1
BL2636 9/64 6 4 1
BL2637 5/32 6 4 1
BL2638 11/64 6 4 1
BL2639 3/16 6 4 1
BL2640 13/64 6 4 1
BL2641 7/32 6 4 1
BL2643 1/4 6 4 1
BL2647 5/16 6 4 1
BL2731 1/16 12 10 1
BL2735 1/8 12 10 1
BL2739 3/16 12 10 1
BL2743 1/4 12 10 1
BL2747 5/16 12 10 1
BL2751 3/8 12 10 1
BL2642 15/64 6 4 1

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