Alpha 3 Flute HSS Cobalt Countersink - 14.4mm

The Alpha HSS Cobalt 3 Flute 90 degree Countersink is a versatile, multipurpose countersink designed for use in all metals, plastics, and wood. Its three-flute geometry reduces chip load and controls chatter, allowing higher feed rates and smoother cutting action. Recommended for use in machines where accurate speed and feed rates can be maintained for optimum results.

Manufactured from fully ground M42 HSS-Co8, this countersink offers superior strength, durability, and extended tool life compared to standard HSS tools. The three-flute construction delivers a fine finish while maintaining stability, making it ideal for professional applications requiring precision and reliability.

FEATURES:

• Fully ground M42 HSS-Co8 – maximum strength and long countersink life
• 3-flute construction – reduces chatter and chip load for smoother performance
• Capable of higher feed rates – ideal for machine use with controlled speed/feed
• Multipurpose design – suitable for all metals, plastics, and wood
• 90 degree cutting angle – precise countersinking and deburring

SPECIFICATIONS:

• Head diameter: 14.4mm (9/16")
• Overall length: 56mm
• Shank diameter: 8mm
• Range min–max: 2–14.4mm
• Countersink angle: 90 degrees
• Suits materials: All metals, plastics, wood
• Flutes: 3
• Material: M42 HSS-Co8 Cobalt
• Manufacturer code: CS3-14.

BEST APPLICATIONS:

• Countersinking in ferrous and non-ferrous metals
• Use in plastics and composite materials
• Precision countersinking and deburring in woodworking
• General workshop and machine-shop operations

DRILLING BEST PRACTICE:

• For best results, use in machines with correct speed and feed rate control
• Apply suitable cutting fluid when countersinking metals. We recommend SW140386 CRC CDT Cutting Liquid or an equivalent
• Use moderate, steady pressure to prevent chatter
• Withdraw the tool periodically to clear swarf in deeper holes
• Inspect the cutting edges regularly and regrind when needed

Find the Alpha Countersinks Data Sheets HERE

Find the Alpha Countersink Comparison Guide HERE

Not what you are looking for, or need specialty tools? Please give us a call on 0800 080 4657 or email us on [email protected]. We are here to help.