Diablo Installer Drill Bit DIB1080 1/2 Inch Diameter Wire Cable Feed (18 Inch Length 3-Flat Shank Black Oxide Flute Framing Lumber Hole Boring)

Diablo DIB1080 1/2-Inch x 18-Inch Wood Installer Drill Bit with Wire Pulling Hole

The Diablo DIB1080 1/2-Inch x 18-Inch Wood Installer Drill Bit delivers an extended 18.0-inch overall length and an integrated flute feed-through hole to bore wide electrical conduit pathways and fish heavy conductors directly through wall framing, ceiling joists, and subfloors. Engineered with an ultra-sharp cutting point and a 3.0-inch black oxide-coated flute section, this long-reach boring bit accelerates chip evacuation while resisting friction heat and pitch buildup across dense dimensional lumber and stacked headers. Equipped with a 3-flat Secure-Grip shank that eliminates bit slipping in standard 3-jaw chucks, it equips electricians, datacom installers, and security technicians with smooth, accurate cable-routing performance through thick wood assemblies.

Best Used For:

• Concealed Wire & Cable Fishing: Boring 1/2-inch pass-through holes and attaching multi-conductor Romex NM-B, coaxial RG-6, or bundled Cat6 Ethernet wiring to the flute eyelet for instant return-pull installation.
• Deep Wall & Floor Stud Penetration: Drilling straight through double top plates, wall sill framing, and subfloor joists spanning deep 18-inch structural cavities.
• Stacked Framing Lumber Boring: Drilling clean holes through laminated veneer lumber (LVL), solid timber beams, and plywood headers without wandering off center.

Key Performance & Safety Features

• Integrated Flute Pulling Hole: Precision-machined hole at the flute tip allows installers to attach wire directly to the bit for immediate pull-back through walls.
• Ultra-Sharp Self-Centering Tip: Delivers aggressive initial penetration and straight tracking through clean wood and multiple stacked studs.
• Black Oxide Flute Coating: Reduces friction, prevents sawdust buildup, and accelerates chip evacuation to keep operating temperatures cool.
• 3-Flat Anti-Spin Shank: Machined flats lock securely into 3-jaw drill chucks, eliminating bit spinout and galling under high feed pressure.
• Extended 18" Working Reach: Long flexible alloy steel shaft navigates deep stud bays, ceiling cavities, and enclosed interstitial construction.

What's Included

• (1) Diablo 1/2" x 18" Wood Installer Drill Bit with Wire Pulling Hole (DIB1080)

Technical Specifications

Pro-Tip: Once the bit breaks through the far wall stud or floor plate, thread your guide wire or pull string securely through the flute hole and wrap the joint with electrical tape before pulling the bit backward; this prevents wire snagging inside the wall cavity.