Milwaukee® 48-89-2730 Thunderbolt® Secure-Grip™ Jobber Drill, 3/8 in Dia x 5 in L, HSS, Black Oxide

Jobber Length Drill Bits
643122 MFG #: 48-89-2730
4.47000 / ea
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 to provide ultimate strength and protect against side-load breakage. A specially designed parabolic flute form clears chips fast, while the 3-Flat Secure-Grip™ shank holds the bit firmly in the drill chuck. The 135 deg split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling on curved surfaces, Milwaukee® Thunderbolt Black Oxide bits require less effort to drill through metal, wood and PVC and are highly recommended for use with portable drills.
  • Applications
  • Features
For Portable Drills
Thunderbolt Web, Provides Longer Life And Faster Driller Times; Parabolic Flute, Clears Chips Faster; 135 DEG Degree Split Point, Precision Start No Walking; 3-Flat Secure Grip Shank, Reduces Bit Slipping In Chuck; Point Type: Split Point; Flute Type: Parabolic; Drill Point: 135 DEG
Extreme durability thicker web provides greater strength and longer life
Fast, accurate drilling 135 deg split point tip starts on contact to prevent walking, while the parabolic flute clears chips fast
Corrosion resistant black oxide coating provides lubricity and resists corrosion of the bit
3-flat Secure-Grip™ shank holds the bit firmly in the drill chuck