6Pcs M35 Cobalt Countersink Drill Bit Set – Titanium Coated, High Speed Steel for Wood, Metal & Plastic

Product Description

Upgrade your drilling and finishing work with our 6-Piece Countersink Drill Bit Set – precision-engineered from M35 cobalt high-speed steel and finished with a wear-resistant titanium coating. Whether you’re a professional tradesperson or a dedicated DIYer, this set delivers clean, burr-free countersinks every time, ensuring screw heads sit perfectly flush or below the surface.

Key Features

• Premium M35 Cobalt HSS – Enhanced with 5% cobalt for superior heat resistance, hardness, and long tool life. Ideal for drilling into hard materials like stainless steel, cast iron, and alloy steel.

• Titanium Coated – The titanium coating reduces friction, minimizes bit galling, and increases surface hardness (up to 2500 HV) for faster cutting and extended durability.

• 6 Essential Sizes – Includes the most commonly used countersink diameters: 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, and 5/8″ (6.35mm – 15.9mm). Each bit features a 3-flute design for smooth, chatter-free cutting and easy chip removal.

• Quick-Change 1/4″ Hex Shank – Universal hex shank fits all standard drill chucks, impact drivers, and quick-change systems. No slipping or wobbling.

• Versatile Application – Works flawlessly in wood, soft/hard metals, aluminum, brass, copper, plastics, and laminates. Perfect for hinge installation, screw seating, deburring holes, and precision chamfering.

What’s Included

• 6 x Countersink drill bits (sizes as above)

• Sturdy storage case (keeps bits organized and protected)

Specifications