Irwin Industrial Tool Co 1882783 No. 10 Wood Countersink Bit

Product Description

The IRWIN INDUSTRIAL TOOL CO 1882783 is a No. 10 tapered wood countersink bit designed for drilling fast, clean pilot holes in wood. The widened flute geometry clears chips efficiently, and the 4-cutter adjustable counterbore delivers smooth countersinking in a single pass. The counterbore attaches securely to the shank flats via hex screws and adjusts for controlled pilot hole depth. The 1/4-inch quick-change shank reduces slipping in standard chucks and is compatible with all 1/4-inch quick-change chuck systems, including impact drivers. This bit is suited for fine woodworking projects requiring precise fastener seating.

This countersink bit is intended for wood applications where a clean, flush or recessed fastener seat is required. It is commonly used in residential and light commercial millwork, cabinetry, trim carpentry, and general fine woodworking. The adjustable counterbore allows the installer to dial in pilot hole depth to match the fastener size, reducing the risk of splitting or over-driving. Sold in a package of 6 units, making it a practical stock item for production woodworking shops or service vehicles where bit wear is a regular factor.

Key Features

• Tapered drill with widened flutes for fast, clean pilot holes in wood
• 4-cutter adjustable counterbore clears chips for smooth, single-pass countersinking
• Counterbore attaches to shank flats with hex screws and adjusts for controlled pilot hole depth
• 1/4-inch quick-change shank reduces slipping in standard chucks
• Compatible with all 1/4-inch quick-change chuck systems including impact drills
• Packaged in a quantity of 6 per unit of measure

Compatibility

Compatible with all 1/4-inch quick-change chucks, including impact drills. Designed for use with No. 10 wood screws in fine woodworking applications.

Installation Notes

Install and adjust this countersink bit using the hex screw on the counterbore before drilling; confirm depth setting on scrap material before committing to finish work. Secure the quick-change shank fully in the chuck before operation. Always wear appropriate eye protection when drilling. No special certifications or licensing are required for standard woodworking use, though production environments should follow applicable shop safety codes.