1882788 Replacement Countersink Bit, #8, 11/64 In.

This Irwin replacement countersink bit is designed to create fast, clean pilot holes and professional countersinks in wood. The tapered drill with widened flutes enables quick drilling while the adjustable four-cutter counterbore cuts and clears chips efficiently for smooth countersinking. The 1/4 inch quick-change shank reduces slipping in standard chucks and is fully compatible with all 1/4 inch quick-change chucks, including impact drills, allowing you to swap bits quickly without tools or additional setup time.

The counterbore attachment uses two hex screws on the shank flats for a secure, stable fit, and the adjustable design lets you control pilot hole depth for consistent, professional results across multiple holes.

Features and Benefits

• Tapered Design with Widened Flutes: Drills fast, clean pilot holes for efficient drilling.
• Four-Cutter Counterbore: Cuts and clears chips quicker for fast, smooth countersinking.
• Adjustable Depth Control: Counterbore position adjusts via hex screws on the shank flats for precise, repeatable pilot hole depth across projects.
• Quick-Change 1/4 In. Shank: Reduces slipping in standard chucks and works with all 1/4 inch quick-change chucks, including impact drills, for fast bit swaps without tools.
• Secure Attachment: Two hex screws lock the counterbore to the shank flats, ensuring stability and drilling precision.

Specifications

• Brand: Irwin
• Model: 1882788
• Countersink Size: #8, 11/64 in. diameter
• Shank Diameter: 1/4 in., quick-change style
• Design: Tapered drill with widened flutes and adjustable four-cutter counterbore
• Attachment: Two hex screws on shank flats
• Compatibility: All 1/4 in. quick-change chucks and impact drills