Milwaukee® Tool 48-89-2317 Thunderbolt® RED HELIX™ Jobber Length Drill Bit, Steel, Cobalt Coated

Milwaukee® Thunderbolt® Cobalt drill bits are designed for extreme durability and long life in specialty applications. 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 and debris fast to keep the bit cool, 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® Cobalt bits require less effort to drill through stainless steel, high alloy steel and cast iron and are highly recommended for use with portable drills.

Milwaukee® Jobber Length Drill Bit, Series: Thunderbolt® RED HELIX™, Imperial, 5/16 in Drill Size - Fraction, 0.3125 in Drill Size - Decimal Inch, 4.63 in Overall Length, 3-3/16 in Cutting Depth, Parabolic Flute, 3-3/16 in Flute Length, 3/8 in Shank, 3-Flat Shank, 135 deg Point, Split Point, Right Hand Cutting, Steel Cutting Edge, Steel, Cobalt Coated, Applicable Materials: Cast Iron, High Alloy Steel Metal, Plastic, PVC, Stainless Steel and Wood