Milwaukee aircraft length black oxide drill bits are ideal for extra reach and deep drilling applications in metal, wood and PVC. The 135° split point tip delivers a precision start and prevents walking for fast, accurate holes. The 3-flat Secure-Grip™ shank holds the bit firmly in the drill chuck to prevent slipping.

Milwaukee® Thunderbolt® Aircraft Length Drill Bit, 1/4 in Drill - Fraction, 0.25 in Drill - Decimal Inch, 12 in Overall Length, 2-3/4 in Cutting Depth, Parabolic Flute, 2-3/4 in Flute Length, 1/4 in Shank, 3-Flat Shank, 135 deg Point, Split Point, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Metal, Plastic and Wood

• Thunderbolt® web provides longer life and faster driller times
• Fast, accurate drilling - 135 deg split point tip starts on contact to prevent walking
• Reduced slipping - 3-flat Secure-Grip™ shank holds the bit firmly in the drill chuck
• Versatile - extended length for hard to reach areas, with reduced shank diameter for use in 3/8 in chucks
• Corrosion-resistant - black oxide coating provides lubricity and resists corrosion of the bit