Diablo Magnetic Drive Guide DDG300B 3 Inch 1 by 4 Inch Hex Shank (Impact Rated Screw Holder Extension Sleeve Drill Driver Accessory)

Diablo DDG300B 3-Inch Magnetic Drive Guide 1/4-Inch Hex Shank

The Diablo DDG300B 3-Inch Magnetic Drive Guide is an impact-rated extension sleeve engineered from high-speed steel alloy to stabilize long fasteners in restricted space applications. Manufactured to satisfy ASME / ANSI B107.600:2008 standards, this 1/4-inch hex power shank holder utilizes a sliding magnetic collar that shields insert bits and aligns screws flush to prevent wobbling, cam-out, and hand slippage during high-torque cordless impact driving.

Best Used For:

• Concealed Screw Driving: Driving long wood or drywall screws straight into tight framing pockets and cabinet interiors without screw head dropouts.
• High-Torque Overhead Assembly: Installing structural fasteners and sheet metal screws overhead using one-handed magnetic sleeve alignment.
• Impact Driver Extension Reach: Extending standard 1-inch insert bits by 3 inches to clear obstruction barriers on busy commercial construction sites.

Key Performance & Safety Features

• Retractable Magnetic Guide Sleeve: Sliding outer collar holds long screw shanks perfectly straight to eliminate fastener wobbling and surface scratches.
• Impact Strong Heat Treatment: Advanced thermal processing strengthens the alloy steel core to absorb rotational shock in high-torque impact drivers.
• Torque Resistant Torsion Zone: Flexes under peak rotational torque to reduce mechanical stress on both the holder assembly and internal bit.
• Corrosion-Resistant Protective Finish: Specialized surface treatment shields high-speed steel construction against rust, moisture, and chemical exposure.
• ASME / ANSI Standard Compliance: Fully certified to ASME / ANSI B107.600:2008 specifications for precise dimensional tolerances and structural integrity.
• Universal Quick-Change Hex Shank: 1/4-inch hex power shank delivers firm chuck retention across all cordless impact drivers and drill chucks.

What's Included

• (1) Diablo DDG300B 3-Inch Magnetic Drive Guide Holder

Technical Specifications

Pro-Tip: Slide the magnetic collar forward over long screw heads before starting your drive to hold fasteners perfectly perpendicular without needing to hold screws by hand.