Irwin 1882787 Countersink Replacement Bit No 6 Wood 6 Pack

Product Description

The IRWIN INDUSTRIAL TOOL CO 1882787 is a Speedbor countersink replacement bit sized for No. 6 wood screws. It combines a tapered drill with widened flutes to cut fast, clean pilot holes that seat screws tightly. The adjustable four-cutter counterbore clears chips quickly for smooth, consistent countersinking in a single pass. The counterbore attaches to flats on the shank using two hex screws, allowing depth adjustment for controlled pilot hole depth. A 1/4 inch quick-change shank reduces slipping in standard chucks and is compatible with all 1/4 inch quick-change chuck systems. Sold in a pack of six bits.

This bit is suited for woodworking and rough carpentry tasks where screw-driving speed and hole quality both matter. Typical applications include cabinet installation, decking, framing finish work, and furniture assembly. The quick-change shank design makes it a practical fit for job-site drills and impact-rated quick-change drivers. The package quantity of six makes it a logical stocking item for crews or shops that cycle through bits regularly.

Key Features

• Tapered drill with widened flutes for fast, clean pilot holes sized for No. 6 wood screws
• Adjustable four-cutter counterbore clears chips efficiently for smooth countersinking
• Counterbore attaches to shank flats with two hex screws for a secure, depth-adjustable fit
• 1/4 inch quick-change shank reduces slipping in standard chucks
• Compatible with all 1/4 inch quick-change chuck systems, including impact drills
• Sold as a pack of six replacement bits

Compatibility

Compatible with all 1/4 inch quick-change chuck systems, including impact drills. Designed as a replacement countersink bit for No. 6 wood screw applications.

Installation Notes

Installation is performed by woodworkers and general carpenters using a standard drill or impact driver equipped with a 1/4 inch quick-change chuck. Before adjusting the counterbore depth or tightening the hex screws, ensure the drill is powered off and the chuck is released. Use the two provided hex screws to secure the counterbore to the shank flats before use, and verify depth setting on scrap material before running production holes.