Product image for Milwaukee 48-89-2722 1/4" THUNDERBOLT® Black Oxide Drill Bit (1/Card)
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Milwaukee 48-89-2722 1/4" THUNDERBOLT® Black Oxide Drill Bit (1/Card)

Manufacturer: Milwaukee Tool | Catalog # 48-89-2722 | Codale Part # 3339757
$2.06/ea
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Primary Spec Sheet
Milwaukee® Thunderbolt® black oxide jobber length drill bits are designed for extreme durability and long life. The Thunderbolt® web features a thicker core than a standard drill bit, which provides ultimate strength and protects against side-load breakage. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. A precision start, 135 split point tip starts on contact to keep the bit from walking for fast accurate holes. Excellent for drilling on curved surfaces, requires less effort to drill and is highly recommended for use with portable drills.

Technical Information

Applications
For Non-Ferrous Metals, Plastic, Steel, Wood
Bit Type
Twist
Coating
Black Oxide
Cutting Depth
95.3 mm
Drilling Depth
4 in
Point Angle
135
Shank Type
3-Flat, Cylindrical Plug-in Axle
Size
1/4 in

Packaging

Pkg Qty
1

Manufacturer Information

Brand
Milwaukee Tool
Sub Brand
Thunderbolt®

General Product Info

12-Digit UPC
045242166916
Finish
Black Oxide
Product UPC
04524216691
Used With
Portable Drill
Weight
0.055 lb

Dimensions

Diameter
1/4 Inch
Flute Length
4.0 in
Length
6 Inch
Overall Length
102 mm
Shank Diameter
0.25 in
Features
  • Extreme durability: thicker web provides greater strength and longer life
  • Fast, accurate drilling: 135° split point tip starts on contact to prevent walking, while the parabolic flute clears chips fast
  • Reduced slipping: 3-flat Secure-Grip™ shank holds the bit firmly in the drill chuck
  • Versatile: reduced shank diameter for use in 3/8 in. chucks
  • Corrosion resistant: black oxide coating provides lubricity and resists corrosion of the bit
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