Diablo Auger Drill Bit DAG1020 5/16 Inch Wood Boring Tool (7-1/2 Inch Length 1/4 Hex Shank Dura-Tip Dual Edge Nail-Embedded Clean Hole Boring)

Diablo DAG1020 5/16" x 7-1/2" Dura-Tip Self-Feed Nail-Embedded Wood Auger Drill Bit

The Diablo DAG1020 5/16-inch wood auger drill bit drills clean pilot holes for heavy structural lag screws, bores wiring pathways through timber studs, penetrates dense hardwoods, and drills through nail-embedded framing without stalling. Measuring 7-1/2 inches in overall length with a 5-1/2-inch usable drilling depth and a 1/4-inch quick-change power hex shank, this high-speed steel boring accessory features a threaded Dura-Tip self-feed point and dual precision-milled cutting spurs to slice directly through hidden fasteners. Outfitted with a two-step cutting action that reduces rotational friction to maximize cordless battery efficiency, deep high-volume flutes for instant chip evacuation, and precision Swiss engineering, it provides residential remodelers, framers, and cabinetry installers with clean, burr-free boring across structural timber assemblies.

Best Used For:

• Structural Lag Bolt Pilot Hole Drilling: Boring precise 5/16-inch pilot channels in timber framing, ledger boards, and deck posts for 3/8-inch and 1/2-inch lag fasteners.
• Cabinetry and Finish Carpentry Framing: Drilling clean, tearout-free pass-through holes in dense hardwood face frames, structural studs, and plywood subflooring.
• Nail-Embedded Remodeling and Demolition: Penetrating old-growth studs, wall plates, and reclaimed lumber containing hidden framing nails without bit tip damage.

Key Performance & Safety Features

• Self-Feeding Dura-Tip™ Point: Threaded lead screw draws the bit effortlessly through dry and green wood fibers, eliminating feed strain while penetrating embedded nails.
• Dual Precision Cutting Edges: Twin scoring spurs slice clean outer hole perimeters before chip removal to prevent splintering and exit blowout.
• Two-Step Cutting Geometry: Progressive cutting profile reduces rotational resistance and motor strain, delivering more drilled holes per battery charge.
• Deep Chip Evacuation Flutes: Wide spiral flutes quickly eject wood shavings out of deep holes to eliminate clogging and reduce friction heat buildup.
• 1/4-Inch Quick-Change Hex Shank: Impact-rated power shank prevents chuck slippage and fits securely into 1/4" impact drivers, drill chucks, and quick-release bit holders.
• High-Speed Steel Metallurgy: Premium heat-treated steel core withstands heavy torsional impact forces from compact cordless power tools.

What's Included

• (1) Diablo DAG1020 5/16" Diameter x 7-1/2" Length Nail-Embedded Wood Auger Drill Bit

Technical Specifications

Pro-Tip: When using this 5/16-inch auger bit in a cordless impact driver, avoid applying heavy forward pressure; letting the threaded Dura-Tip self-feed mechanism pull the bit at consistent RPM preserves battery runtime and clears chips without flute binding.