DEWALT Power Ship Auger Bit DW1689 1-1/8 x 17 Inch (High Speed Hardened Alloy Steel Self Feed Screw Point Dual Cutter 7/16 Ball Groove Hex Shank)

DEWALT DW1689 1-1/8-Inch x 17-Inch Power Ship Auger Bit

The DEWALT DW1689 1-1/8-Inch x 17-Inch Power Ship Auger Bit is a heavy-duty wood boring tool engineered for drilling deep utility wire passageways, plumbing pipe conduits, and structural timber connections. Forged from hardened high-speed alloy steel, this 17-inch drill bit features a self-feeding screw point tip that draws the 1-1/8 inch diameter cutter through dense timbers with minimal operator feed pressure. Outfitted with dual cutting spurs to slice through nail-embedded lumber, extra-deep chip clearance flutes to prevent binding, and a 7/16-inch ball groove quick-change hex shank, this single-piece accessory delivers fast material removal across heavy framing applications.

Best Used For:

• Timber Framing & Log Home Construction: Boring deep 1-1/8 inch structural bolt holes through multi-ply glued laminated timber beams and heavy framing posts.
• Utility Electrical Wire Pass-Throughs: Drilling extended 17-inch conduit channels through stacked floor joists and double top plates to route thick commercial wiring.
• Remodeling & Nail-Embedded Wood Boring: Slicing cleanly through old-growth structural lumber and embedded framing nails without dulling cutter spurs.

Key Performance & Safety Features

• Self-Feeding Threaded Screw Point Tip: Draws the auger bit into the workpiece automatically to reduce feed pressure and operator strain.
• Dual Cutting Spur Geometry: Reinforced cutting edges slice through embedded nails and knots without chipping cutter faces.
• Extra-Deep Helical Chip Clearance Flutes: Wide flute channels evacuate wood shavings rapidly to eliminate bit binding and heat build-up.
• Hardened High-Speed Alloy Steel Forging: Industrial steel body maintains structural stiffness to prevent bit deflection during deep 17-inch bores.
• 7/16-Inch Ball Groove Quick-Change Hex Shank: Fits securely into standard 7/16-inch quick-change impact wrench adapters and heavy drill chucks.
• Precision 1-1/8-Inch Hole Diameter Profile: Cuts clean, burr-free entry and exit holes to simplify conduit and supply pipe passage.

What's Included

• (1) DEWALT DW1689 1-1/8-Inch x 17-Inch Power Ship Auger Bit with 7/16-Inch Ball Groove Shank

Technical Specifications

Pro-Tip: Allow the threaded self-feed screw tip to pull the auger bit into the timber without pushing down on your drill; letting the thread pitch dictate the feed rate keeps the 17-inch shaft straight and prevents chip packing in deep bores.