Designed for long-lasting results in the toughest materials, Alpha Gold Series countersinks last three times longer than other countersinks on the market. 

• Fully ground M2 HSS-CoB increases strength and countersink life 
• Titanium nitride coating reduces heat and increases lubricity for extended life 
• 3 flute design provides clean and fast countersinking and deburring with a cordless drill 
• HSS cobalt with TiN coating 
• 1/4" quick change shank
• Suits: Non-hammer action portable power and pedestal drills