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Mibro 5/16 in. Aircraft Extension Drill Bit

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Mibro 5/16 in. Aircraft Extension Drill Bit

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Mibro Mibro 5/16 in. Aircraft Extension Drill Bit
Mibro Mibro 5/16 in. Aircraft Extension Drill Bit
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Shop all Mibro
Mibro 5/16 in. Aircraft Extension Drill Bit

Item # 390227799

Stocked & Ready
Mibro Mibro 5/16 in. Aircraft Extension Drill Bit
Mibro Mibro 5/16 in. Aircraft Extension Drill Bit

$18.99

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Mibro 5/16 in. Aircraft Extension Drill Bit
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Mibro 5/16 in. Aircraft Extension Drill Bit

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.99

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Mibro 3/16 in. Aircraft Extension Drill Bit

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.29

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The MIBRO 5/16 in. Aircraft Extension High-Speed Steel Drill Bit is designed for drilling in hard-to-reach areas and applications that require additional drilling depth. Its extended length makes it ideal for drilling through studs, joists, and other materials when installing electrical wiring, communication cables, or similar systems. Suitable for general-purpose drilling in wood, drywall, plastics, and metal, this drill bit is a practical addition to any toolbox. The 135° split-point tip helps reduce walking and eliminates the need for a center punch on many applications, making it easier to start clean, accurate holes. Built for demanding jobs where standard-length drill bits cannot reach, it provides the added access needed for installation and renovation projects. This drill bit requires firm feed pressure during use and is not recommended for fine woodworking applications.

Looking for more information on tools? Check out our guide on essential woodworking power tools in the product documents section.

  • Ideal for drilling in hard-to-reach areas and applications requiring additional drilling depth
  • Commonly used for running electrical wires, communication cables, and other utility lines
  • Suitable for general-purpose drilling in wood, drywall, plastics, and metal
  • 135° split-point tip helps reduce walking and eliminates the need for a center punch
  • Requires firm feed pressure during operation and is not recommended for fine woodworking
  • 12 in. (304.8 mm) overall length
BrandMibro
Country of OriginImported
Bit Diameter5/16 in.
Bit Length12 in.
Material ApplicationsWood, Plastic, Metal
Minimum Chuck Size3/8 in.
Package Quantity1
Primary MaterialHigh-speed steel
Product Weight0.22 lb.
Shank Diameter5/16 in.
WarrantyCustomer Satisfaction
Manufacturer Part Number363071
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    Rifle, CO
    Reviews 7
    5 out of 5 stars.

    Fine bit

    a year ago
    Fine bit. Was using to drill holes for electric fence in frozen ground. Bit broke after 30 or so holes.
    SweepstakesYes

    Yes, I recommend this product.

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