Crescent Solid Auger Drill Bit CDAG-1347 1 1/8 Inch Boring Tool (1/4 Quick Release Hex Shank 13 Overall Length High Speed Steel Wood Drilling)

Crescent CDAG-1347 1-1/8" x 13" Solid Auger Drill Bit with 1/4" Quick-Release Hex Shank

The Crescent CDAG-1347 1-1/8-inch by 13-inch solid auger drill bit bores tearout-free conduit passages, heavy electrical main feeders, and residential plumbing lines through structural timber framing, stacked wall plates, and heavy floor joists. Engineered from triple-sharpened high-speed steel with an optimized precision cutting spur, this wood-boring accessory yields 40 percent more cut cycles per battery charge and penetrates lumber up to 10X faster than conventional spade bits. Outfitted with an expansive 12-inch usable drilling depth, deep dual-flute evacuation channels that eliminate internal chip binding and thermal friction, and an impact-rated 1/4-inch quick-release hex shank, it equips commercial electricians, residential plumbers, and framing carpenters with smooth, continuous boring across cordless impact drivers and standard rotary drills.

Best Used For:

• Commercial Electrical Service Rough-Ins: Boring clean 1-1/8-inch diameter pass-through holes in timber studs and double top plates to run 3/4-inch trade size electrical conduit, thick service entrance conductors, or large bundles of armored MC cable without friction drag.
• Plumbing and Potable Water Lines: Sinking clearance pathways through sole plates, rim joists, and subflooring for 3/4-inch nominal CTS copper tubing, PEX water lines with protective sleeves, and small drain lines.
• Deep Structural Timber and Beam Penetrations: Boring through dense dimensional framing lumber, engineered glulam headers, and doubled floor joists up to a full 12-inch working depth.

Key Performance & Safety Features

• Triple-Sharpened High-Speed Steel: Heavy-duty cutting edges stay sharp longer when cutting through dense construction timber, boring up to 10X faster than generic flat spade bits.
• 40% More Cuts Per Battery Charge: Reduced-friction flute geometry and low-drag cutting spurs decrease motor draw to extend cordless tool operational life.
• High-Capacity Dual-Flute Evacuation: Deep dual flutes rapidly eject large wood chips away from the cutting spur to prevent bore packing and motor bog-down.
• Extended 12-Inch Boring Depth: Long 13-inch tool length allows tradesmen to bore completely through double top plates and deep wall studs without using an arbor extension.
• 1/4" Quick-Release Hex Shank: Precision-milled quick-change hex base eliminates chuck slippage in drill drivers and locks directly into high-torque cordless impact drivers.
• Precision Spur Clean Cutting Edges: Scored perimeter spurs slice cleanly through wood grains before chip lifting occurs, preventing backside exit breakout.

What's Included

• (1) Crescent 1-1/8-Inch x 13-Inch Solid Auger Drill Bit (CDAG-1347)

Technical Specifications

Pro-Tip: The 1-1/8-inch diameter matches the required knockout clearance for 3/4-inch trade conduit fittings; allow the self-feeding threaded tip to pull the bit steadily without forcing downward pressure to keep battery draw low and avoid thermal glazing in dense engineered lumber.