IRWIN 5-Piece Metal Countersink Drill Bit Set – 82° Tips, HSS, Drawer Case

Overview

The IRWIN 5-Piece Metal Countersink Drill Bit Set is designed for reliable countersinking across machinable metals, wood, and plastic. Each countersink features a precision-ground 82 degree tip that helps create a clean, flush seating for screws, supporting a professional finish on a variety of materials without wandering or tear-out.

Built to last

Crafted from industrial grade high speed steel, these bits are built for durability and repeated use in busy workshops. A black oxide coating adds corrosion resistance, helping the tools hold up in daily fabrication tasks and challenging environments.

How it works

The five flute design minimizes vibration, resulting in a smoother drilling action and a longer tool life. The 1/4 inch round shank ensures compatibility with a wide range of handheld and stationary drills, giving you flexibility in setup and workflow.

What you get

• Sizes included: 1/4-inch, 3/8-inch, 1/2-inch, 5/8-inch, and 3/4-inch countersinks
• Drawer case for organized storage and easy transport
• Designed for machinable metals, wood, and plastic projects

Practical use cases

Use these countersinks to seat screw heads flush with panels, furniture components, or plastic housings. Expect clean edges, precise seating, and consistent results across different materials and project scales.

Tips for best results

• Match the countersink size to the screw diameter for a flush finish
• Apply light lubrication when countersinking metals to reduce heat and wear