IRWIN Steel Countersink Drill Bit – 1/4″ Shank × 4-3/4″

Description

IRWIN® wood countersinks feature a tapered drill and wide flutes that drill fast, clean pilot holes. They have an adjustable four-cutter counter bore attachment that cuts fast.

Key Features:

• Ensures a tight fit for screws
• The counter bore feature attaches flats on shank with two hex screws for a secure fit, and can be adjusted for controlled pilot hole dept
• Clears chips quickly for fast, smooth countersinking applications
• Fits all standard 1/4 In. quick-change chucks, including impact drills