Irwin 1882785 7/16″ #14 Wood Tapered Countersink

Irwin 1882785 7/16″ #14 Wood Tapered Countersink Drill Bit with Adjustable Counterbore

The Irwin 1882785 #14 Wood Tapered Countersink Drill Bit is designed for drilling clean, accurate pilot holes and creating smooth countersinks when working with large wood screws. The tapered drill profile matches #14 wood screws, helping reduce splitting while allowing fasteners to seat correctly for strong holding power in structural and heavy-duty wood applications. Widened flutes clear chips efficiently, keeping drilling fast and clean in softwood, hardwood, treated lumber, plywood, and other common construction materials.

This countersink features a four-cutter adjustable counterbore that cuts evenly and clears material quickly for smooth, consistent countersinking. The counterbore attaches securely to the flats on the shank using hex screws and can be adjusted to control pilot hole depth based on screw length and material thickness. A 1/4-inch quick-change hex shank helps reduce slipping in standard chucks and provides compatibility with all 1/4-inch quick-change systems, including impact drills. Built for demanding fastening tasks, this countersink is well suited for structural carpentry, deck building, and heavy wood construction where accuracy and repeatability are essential.

Irwin #14 Wood Tapered Countersink At a Glance

• Tapered Drill Bit: Matches #14 wood screw taper to reduce splitting
• Widened Flutes: Clear chips quickly for fast, clean pilot holes
• 4-Cutter Counterbore: Cuts smooth, even countersinks
• Adjustable Depth Control: Sets pilot hole depth for different screw lengths
• 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 chucks
• Heavy-Duty Design: Built for large fasteners and demanding wood applications

Markets

• Carpentry and Framing: Used for pilot holes and countersinks with large structural screws
• Deck Building and Exterior Construction: Supports clean screw seating in treated lumber
• Timber and Heavy Wood Construction: Suitable for large fasteners in beams and posts
• Construction and Remodeling Crews: Reliable for repetitive heavy-duty fastening tasks
• Maintenance and Facility Operations: Useful for structural wood repairs
• Trade Schools and Training Programs: Helps demonstrate proper pilot drilling for large fasteners

When working with large wood screws, accurate pilot holes and controlled countersinks are critical to prevent splitting and ensure proper fastener seating. This tapered countersink combines both operations into one adjustable tool, allowing crews to work efficiently while maintaining consistent results. The four-cutter counterbore produces smooth recesses so screw heads sit flush or below the surface, improving both appearance and structural reliability.

Contractors benefit from the 1/4-inch quick-change hex shank, which keeps the bit secure in drills and impact drivers while speeding up tool changes during repetitive fastening. Deck builders, framers, and maintenance teams appreciate the chip-clearing flutes that keep drilling efficient in dense or treated lumber. Whether used on a jobsite or in a shop, this countersink supports dependable performance for heavy-duty wood fastening tasks.

Irwin 1882785 7/16″ #14 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 1882785 7/16″ #14 Wood Tapered Countersink Includes

• (1) #14 Tapered Drill Bit
• (1) Adjustable 4-Cutter Counterbore
• (2) Hex Screws for Counterbore Attachment

Irwin 1882785 7/16″ #14 Wood Tapered Countersink Specifications

• Product Number: 1882785
• Screw Size: #14
• Bit Diameter: 7/16 in
• Bit Length: 4 in
• Bit Type: Countersink
• Material: High-Carbon 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 #14 Wood Tapered Countersink

Professionals choose the Irwin 1882785 when installing #14 wood screws because it provides reliable pilot drilling and smooth countersinking in one adjustable setup. The tapered drill bit helps reduce splitting in large lumber while allowing fasteners to seat properly for strong structural connections. The four-cutter counterbore creates clean recesses so screw heads sit flush or below the surface, reducing finishing work and rework on demanding projects.

The 1/4-inch quick-change hex shank allows fast, secure use with cordless drills and impact drivers, making it practical for repetitive heavy-duty fastening on the jobsite. For crews working in decking, framing, and structural wood construction, this countersink delivers accuracy, control, and dependable performance where it matters most.