Irwin 1882782 11/64″ #8 Wood Tapered Countersink

Irwin 1882782 11/64″ #8 Wood Tapered Countersink Drill Bit with Adjustable Counterbore

The Irwin 1882782 #8 Wood Tapered Countersink Drill Bit is built for drilling clean pilot holes and creating smooth, consistent countersinks in wood materials. The tapered high-speed steel drill bit matches the profile of #8 wood screws, helping reduce splitting while providing strong fastener holding power. Widened flutes move chips away efficiently, allowing faster drilling and cleaner results in softwood, hardwood, plywood, and other common wood products used in construction and woodworking.

This countersink includes an adjustable four-cutter counterbore designed to cut evenly and clear material quickly for smooth screw seating. The counterbore mounts securely to the flats on the shank using two hex screws and can be adjusted to control pilot hole depth for different screw lengths and applications. A 1/4-inch quick-change hex shank minimizes slipping in standard chucks and is compatible with all 1/4-inch quick-change systems, including impact drivers. With a compact 4-inch length and durable construction, this bit is suited for both shop use and jobsite installation where speed, accuracy, and repeatable results are required.

Irwin #8 Wood Tapered Countersink At a Glance

• Tapered Drill Bit: Matches #8 wood screw taper to reduce splitting
• Widened Flutes: Clear chips quickly for fast, clean pilot holes
• 4-Cutter Counterbore: Produces smooth, even countersinks
• Adjustable Depth Control: Sets pilot hole depth based on screw length
• Secure Counterbore Attachment: Mounts to shank flats with hex screws
• 1/4″ Quick-Change Shank: Reduces slipping in standard chucks
• Impact Driver Compatible: Works with all 1/4″ quick-change systems
• High-Speed Steel Construction: Built for durability in wood applications

Markets

• Carpentry and Framing: Used for accurate pilot holes and countersinks in wood structures
• Cabinet and Furniture Making: Supports clean, flush screw installation on finished surfaces
• Trim and Finish Installation: Helps maintain consistent countersink depth in visible work
• Construction and Remodeling: Reliable for repetitive fastening tasks on site
• Maintenance and Facility Operations: Useful for everyday wood repair and installation
• Trade Schools and Training Programs: Helps teach proper pilot drilling and countersinking methods

Professionals who work with larger wood fasteners depend on accurate pilot holes and consistent countersinks to maintain strength and appearance. This tapered countersink supports that need by combining drilling and countersinking into one adjustable setup. The four-cutter counterbore produces smooth recesses that allow screws to sit flush or below the surface, reducing finishing work and improving overall results.

Contractors and installers benefit from the 1/4-inch quick-change hex shank, which keeps the bit secure in drills and impact drivers while allowing fast tool changes during repetitive tasks. Cabinet makers, trim crews, and maintenance teams appreciate the ability to control drilling depth for different screw lengths. Whether used in a shop or on a jobsite, this countersink delivers reliable performance for everyday wood fastening applications.

Irwin 1882782 11/64″ #8 Wood Tapered Countersink Features

• High-Speed Steel Drill Bit: Provides strength and wear resistance for wood drilling
• Tapered Pilot Hole Geometry: Matches screw profile for improved holding power
• Four-Cutter Counterbore: Produces smooth, even countersinks
• Adjustable Counterbore Assembly: Allows precise depth control
• Dual Hex Screw Attachment: Keeps counterbore securely mounted
• Quick-Change Hex Shank: Compatible with standard and impact tools

Irwin 1882782 11/64″ #8 Wood Tapered Countersink Includes

• (1) #8 Tapered Drill Bit
• (1) Adjustable 4-Cutter Counterbore
• (2) Hex Screws for Counterbore Attachment

Irwin 1882782 11/64″ #8 Wood Tapered Countersink Specifications

• Product Number: 1882782
• Screw Size: #8
• Bit Diameter: 11/64 in
• Bit Length: 4 in
• Bit Type: Countersink
• Material: High-Speed Steel
• Shank Size: 1/4 in
• Shank Type: Hex
• For Use On Wood: Yes
• For Use On Metal: No
• Quick Change: Yes
• Package Quantity: (1) Individual Bit

Why Customers Choose the Irwin #8 Wood Tapered Countersink

Installers and woodworkers choose the Irwin 1882782 because it delivers consistent pilot holes and smooth countersinks for #8 wood screws in one adjustable tool. The tapered drill bit helps reduce splitting while supporting strong fastener holding power, which is critical for structural and finish applications. The four-cutter counterbore creates clean recesses so screws seat flush or below the surface, improving appearance and reducing finishing time.

The 1/4-inch quick-change hex shank makes this countersink easy to use with cordless drills and impact drivers, helping crews work efficiently during repetitive fastening tasks. For professionals and serious DIY users who need dependable results across a range of wood projects, this countersink provides accuracy, control, and reliable jobsite performance.