Diablo Quick Change Magnetic Bit Holder DBH238QCB 2 and 3 by 8 Inch 1 by 4 Inch Hex Shank (Impact Rated Retaining Driver Extension Accessory)

Diablo DBH238QCB 2-3/8-Inch Quick-Change Magnetic Bit Holder 1/4-Inch Hex Shank

The Diablo DBH238QCB 2-3/8-Inch Quick-Change Magnetic Bit Holder is an impact-rated driver extension forged from high-speed steel alloy to stabilize 1-inch insert bits in confined-space applications. Built with a 1/4-inch quick-change hex shank and a tool-free locking collar, this extension houses a high-coercivity permanent magnet that retains driver bits and steel fasteners to eliminate wobble, dropouts, and rotational slippage under heavy impact torque loads.

Best Used For:

• Rapid Tool-Free Bit Swapping: Changing driver insert bits instantly on busy job sites without requiring pliers or separate bit-changing tools.
• Tight Space Fastening: Extending standard 1-inch insert bits into narrow joist bays, electrical junction boxes, and cabinet interiors.
• High-Torque Overhead Assembly: Holding steel wood screws and fasteners firmly in place for stable one-handed overhead driving.

Key Performance & Safety Features

• Quick-Change Locking Collar: Tool-free mechanism allows fast bit swaps to reduce jobsite downtime during high-volume fastening.
• High-Retention Permanent Magnet: Integrated magnetic core holds insert bits and steel screw heads securely to eliminate fastener wobble.
• Impact Strong Thermal Treatment: Proprietary heat-treatment process strengthens the alloy steel structure to absorb severe rotational impact shock.
• Torque Resistant Torsion Zone: Flexes under extreme torque loads to reduce mechanical stress on both the holder body and inserted bits.
• Corrosion-Resistant Protective Finish: Advanced surface coating shields the steel construction against jobsite rust, humidity, and wear.
• Universal Quick-Change Hex Shank: Standard 1/4-inch hex power shank delivers firm chuck retention across all cordless impact drivers and drill chucks.

What's Included

• (1) Diablo DBH238QCB 2-3/8-Inch Quick-Change Magnetic Bit Holder

Technical Specifications

Pro-Tip: Pull back on the quick-change collar when releasing bits rather than pulling the bit directly to preserve internal locking spring longevity and ensure smooth, tool-free bit swaps.