Auger drill bit DeWalt DT4642-QZ, length 380 mm, 1 pc

DeWalt DT4642-QZ auger drill bit, 380 mm length, supplied as a single piece. This auger bit is designed for efficient wood boring: a self-feed spur initiates quick penetration, deep-fluted spiral geometry evacuates chips effectively, and a peripheral cutting edge produces clean hole walls with reduced splintering. The bit is suitable for handheld drills and brace tools when long-reach holes in timber are required, making it useful for carpentry, timber framing and general woodworking tasks.

Advantages

The deep-fluted auger geometry ensures continuous chip removal for steady drilling progress and reduced binding. A self-feed spur provides reliable centring and fast material penetration without repeated pilot holes. The peripheral cutting edge minimises spalling and delivers cleaner hole edges. Built for compatibility with common drill chucks and braces, the bit offers stable performance when creating long, straight bores in soft and seasoned wood.

Suitable for

• Drilling long holes in timber for carpentry and joinery
• Timber framing and structural boring where reach is required
• General woodwork tasks such as running wiring, bolts or dowels through beams
• Handheld and brace drilling applications

Key specifications

• Total length: 380 mm
• Tip type: self-feed spur for fast penetration and centring
• Spiral geometry: deep flutes for efficient chip evacuation
• Cutting edge: peripheral cutter for reduced spalling and cleaner holes
• Quantity: 1 piece per pack

How to use

Mark the drilling position and start drilling at low speed to allow the self-feed spur to engage and centre the bit. Apply steady pressure and increase speed as the bit begins to cut and chips are evacuated through the flutes. For long holes, periodically withdraw the bit to clear accumulated chips if progress slows. Use an appropriate chuck or brace suited to the bit shank and ensure the workpiece is secured to prevent movement during drilling.

Usage recommendations

Use cutting lubricant or light oil only when recommended for the specific wood type and avoid excessive force; maintain steady feed and clear chips regularly to prolong bit life and maintain hole quality.