3/16" x 12" Aircraft Length Black Oxide Drill Bit

Milwaukee 48-89-2771 — Product Description

The Milwaukee 48-89-2771 is a 3/16" x 12" aircraft-length black oxide drill bit designed for extra-deep, hard-to-reach drilling in metal, wood, and plastic.

It’s part of Milwaukee’s Aircraft Length Black Oxide series, which is basically an “extended reach” version of their standard twist drill bits.

Key Features

• Extra-long 12" length – lets you drill deep or reach into tight/boxed areas
• 135° split point tip – starts on contact and helps prevent walking for accurate holes
• Black oxide coating – reduces friction and improves corrosion resistance
• Parabolic flute design – clears chips faster for cooler drilling
• 3-flat Secure-Grip shank – reduces slipping in the chuck and improves grip

Specs

• Size: 3/16"
• Overall length: 12"
• Flute length: ~2-5/16"
• Shank: 3-flat reduced shank
• Material: High-speed steel (HSS)
• Use: Metal, wood, PVC, plastics

Best Uses

• Deep hole drilling in studs, framing, or assemblies
• Running wire, conduit, or fasteners through thick material
• HVAC, electrical, and plumbing installs
• Situations where a normal-length bit simply won’t reach

Bottom Line

The 48-89-2771 isn’t about size of hole—it’s about reach. It’s a long-reach “aircraft” drill bit made for getting into places standard bits physically can’t access.