We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
WoodOwl Nail Chipper Duo Auger bit silver steel cylinder quick-change shank

WoodOwl

WoodOwl 00517 Nail Chipper Duo Auger 7.5" x 1-1/4" pneumatic accessory

SKU CH-8F2S-01WJ7

Drills 1-1/4" holes through nail-embedded studs with a double-cut design that nearly eliminates kick-back and a 7/16 quick-change shank

  • Double-cut design chips through nails cleanly
  • Reduces kick-back for safer drilling in studs
  • Lightweight build extends drill battery runtime
  • 7/16 quick-change shank speeds bit swaps
  • Easily resharpened for longer service life

WoodOwl 00517 Nail Chipper Duo Auger

The WoodOwl 00517 Nail Chipper Duo Auger is a pneumatic accessory designed for drilling through wood that contains embedded nails or fasteners. Its double-cut design chips away at obstructions to leave a cleaner hole for conduit and wiring runs. The 7/16 inch quick-change shank allows for fast bit swaps on compatible drills and impact drivers. Professional electricians and remodelers working in older structures will find this bit reduces time spent clearing blocked holes.

Upgrading from standard ship augers

Traditional ship augers often bind or kick back violently when they strike hidden nails, risking wrist injury and damaging the bit. This Duo Auger replaces those single-flute bits with a geometry that nearly eliminates kick-back when encountering fasteners. The jump is worth it for crews who regularly drill through reclaimed lumber, renovation sites, or older framing where nail strikes are frequent and unpredictable. The design also preserves the tool and battery life by reducing peak torque loads.

Installing the 7/16 quick-change shank

Installation is straightforward: insert the 7/16 inch hex shank into a quick-change chuck or compatible adapter until it locks securely. Ensure the chuck collar is fully seated to prevent the bit from ejecting under load. What usually goes wrong is using a worn or incorrect chuck that fails to grip the shank flats, leading to slippage or the bit falling out mid-cut. The cutting edges are easily resharpened with a file to maintain performance over the accessory's service life.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 58% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameWOODOWL

Questions about this item

What size chuck or adapter does the 7/16 quick-change shank on this 7.5" OAL bit require?

The 7/16-inch quick-change shank fits directly into a matching 7/16-inch hex quick-change chuck or adapter; no separate sleeve is needed.

How do I install the bit so the double-cut nail-chipper geometry engages properly and avoids kick-back?

Insert the shank fully until it locks, set the drill to low speed and high torque, then apply steady pressure — do not force the bit, or the anti-kickback design cannot work.

When the cutting edges dull from hitting nails, how is this bit resharpened?

File each cutting lip and the twin nail-chipper spurs by hand with a fine auger file, maintaining the original angles; the bit is designed for easy field resharpening.

More in Bits, Hole Saws & Accessory Kits

Similar items