Irwin Speedbor 1882 Series Countersink Wood Drill Bit

Irwin Speedbor 1882 Series Countersink Wood Drill Bit

The Irwin Speedbor 1882 Series Countersink Wood Drill Bit combines a tapered drill body with widened flutes to bore fast, clean pilot holes, while its adjustable four-cutter counter bore attachment clears chips quickly for smooth, controlled countersinking. This family is available across a range of wood screw sizes from #4 to #14, offered as either a Complete Countersink assembly (drill bit plus counter bore) or as a Replacement Bit alone, so you can match the exact fastener and configuration your project calls for. Every bit in the series fits all standard 1/4" quick-change chucks, including impact drills, making it a versatile addition to any woodworking or trim carpentry kit. Whether you're building cabinetry, assembling furniture, or handling trim carpentry, the 1882 Series is designed to deliver a tight, flush screw fit every time.

Key Features

• Tapered Drill Design: A tapered drill with widened flutes drills fast, clean pilot holes and helps ensure a tight screw fit.
• Adjustable Counter Bore: The four-cutter counter bore attachment cuts fast and clears chips quickly for smooth, efficient countersinking.
• Secure Two-Screw Mounting: The counter bore attaches to flats on the shank with two hex screws, letting you adjust and lock in the pilot hole depth.
• Universal Chuck Compatibility: Fits all standard 1/4" quick-change chucks, including impact drills, for use across a range of tools.
• Wood Screw Size Range: Offered for wood screw sizes spanning #4, #6, #8, #10, #12, and #14 for consistent, professional-grade results across common fastener sizes.
• Two Assembly Options: Choose the Complete Countersink (drill bit with counter bore attachment) or the Replacement Bit alone, letting you replenish a worn bit without buying a full assembly.
• 1882 Series: Part of the Irwin Speedbor 1882 Series countersink bit lineup built for woodworking professionals and DIYers alike.

Technical Specifications

• Warranty: NLW
• Country of Origin: China
• Battery Included: No
• Product Type: Countersink Drill Bit
• Individual Vs. Set: Individual

Typical Applications

• Woodworking and Cabinetry Projects
• Furniture Assembly and Repair
• Deck and Outdoor Wood Construction
• Pilot Hole Drilling for Wood Screws
• Countersinking for Flush Screw Fit

Why Irwin?

Irwin engineers the Speedbor 1882 Series countersink bits with a tapered, widened-flute drill and an adjustable four-cutter counter bore secured by two hex screws, giving woodworkers a dependable way to control pilot hole depth and achieve a clean, flush countersink. With a wood screw size range from #4 through #14 and both Complete Countersink and Replacement Bit configurations, plus compatibility with standard 1/4" quick-change chucks, including impact drills, this bit drops into the tools professionals and DIYers already own. It's a practical, purpose-built solution for anyone who needs consistent, tight-fitting screw holes in wood. Built for professionals and DIYers alike, this Speedbor bit is a reliable choice whenever a project calls for a clean, countersunk wood screw hole.