Simplify Wiring Projects with DECKRKAT 54" Flexible Installer Drill Bit. Conquer wire-pulling tasks efficiently with DECKRKAT Flexible Installer Drill Bit.Its 3/8" screw-point tip creates clean paths in drywall and wood, while the fish eye hole allows easy bidirectional wire threading—saving time and reducing wall damage. 3-flat shank maintains a secure grip in any drill chuck, even under high torque.Combined with a high-strength spring steel core that withstands sharp bends, this tool delivers reliable performance for attic cabling, outdoor lighting, or sidewalk pipe installations. Key Features: Fish Eye Hole – Attach pull lines from both ends for versatile setups. 3-Flat Grip Shank – Zero slippage during heavy-duty drilling. 54" Flexible Shaft – Bends up to 90° without losing integrity. Specifications: Head Diameter: 3/8 inch Shank Diameter: 3/16 inch (3-flat) Length: 54 inches (137cm) Material: High-Strength Spring Steel Tip: Screw Point + Fish Eye Hole How to use the fish eye hole? After drilling, pass a pull line through the hole, attach cables, and draw them smoothly through cavities—no snagging.