Diablo Auger Drill Bit DAG1040 7/16-In Wood Boring Tool (7.5-In Total Length 1/4 Hex Shank Dura-Tip Dual Edge Nail-Embedded Timber Clean Holes)

Diablo DAG1040 7/16" x 7.5" Dura-Tip Self-Feed Nail-Embedded Wood Auger Drill Bit

The Diablo DAG1040 7/16-inch wood auger drill bit bores clean pilot pathways through structural timber framing, drills pass-through holes for small-diameter wiring and mechanical lines, penetrates dense hardwood joists, and drills nail-embedded lumber without binding. Measuring 7.5 inches in total length with a 5.5-inch usable drilling depth and an impact-rated 1/4-inch quick-change power hex shank, this high-speed steel boring accessory features a threaded Dura-Tip self-feeding screw point and dual precision-milled cutting spurs to slice directly through hidden fasteners. Outfitted with a progressive two-step cutting geometry that reduces rotational torque to maximize cordless tool battery runtime, high-volume deep flutes for rapid chip ejection, and precision Swiss engineering, it provides residential electricians, remodelers, and framing contractors with clean, burr-free boring across structural timber assemblies.

Best Used For:

• Low-Voltage and Branch Wiring Pass-Throughs: Boring 7/16-inch clean diameter holes through wall studs, floor joists, and double top plates for communication lines, thermostat cables, and single Romex runs.
• Structural Fastener Pilot Hole Drilling: Drilling clean, tearout-free pilot channels in multi-ply timber headers, ledger boards, and structural posts for 1/2-inch lag screws and carriage bolts.
• Nail-Embedded Remodeling and Demolition Framing: Penetrating old-growth lumber, reclaimed structural beams, and subfloor assemblies containing embedded steel framing nails without tip fracture.

Key Performance & Safety Features

• Self-Feeding Dura-Tip™ Point: Threaded lead screw draws the bit effortlessly through dry and green timber, eliminating manual feed strain while penetrating embedded framing nails.
• Dual Precision Cutting Edges: Twin outer scoring spurs slice clean hole perimeters before chip removal to prevent wood splintering and exit blowout.
• Two-Step Cutting Action: Progressive cutting profile reduces rotational torque resistance, significantly lowering battery drain on cordless drills and impact wrenches.
• Deep Chip Evacuation Flutes: Wide polished flutes quickly eject wood shavings out of deep holes to eliminate clogging and reduce friction heat.
• 1/4-Inch Quick-Change Hex Shank: Impact-rated power shank prevents chuck slippage and locks 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 DAG1040 7/16" Diameter x 7.5" Length Nail-Embedded Wood Auger Drill Bit

Technical Specifications

Pro-Tip: When boring through stacked framing plates with a cordless impact driver, avoid applying heavy downward feed force; allowing the threaded Dura-Tip point to draw the bit smoothly at medium speed preserves tool battery runtime and prevents chip packing in deep holes.