Thunderbolt® Secure-Grip™ 6-Piece Imperial Jobber Length Drill Bit Set, 7/16" Drill x 5-1/2" OAL, 4-1/16" Cut Depth, 7/16" Shank, HSS
Milwaukee® Jobber Length Twist Drill Bit, 6-Piece, Series: Thunderbolt® Secure-Grip™, Imperial, 7/16 in Drill Size - Fraction, 0.4375 in Drill Size - Decimal Inch, 5-1/2 in Overall Length, 4-1/16 in Cutting Depth, Parabolic Flute, 4-1/16 in Flute Length, 7/16 in Shank, 3-Flat/Reduced Shank, 118 deg Point, Split Point, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Cast Iron, Steel and Steel Forgings
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.
