The Irwin 373003 hole saw mandrel accepts bi-metal hole saws from 1-1/4" to 6" in diameter. The 3/8" hex shank fits both 3/8" and 1/2" drill chucks. The threadless design prevents bind-up during operation, and the removable pilot drill allows easy replacement when worn.

• 3/8" hex shank - fits 3/8" and 1/2" drill chucks
• Accepts hole saws from 1-1/4" to 6"
• Threadless design prevents bind-up
• Removable pilot drill for easy replacement
• Tough, durable construction