The DeWalt DW1637 2-1/8" Heavy Duty Self-Feed Bit is designed for professional contractors who need to bore large holes for pipes, cables, and ductwork. The self-feeding screw provides fast material penetration while the optimized cutting geometry ensures longer bit life.

• 2-1/8" cutting diameter for large hole applications
• 6" overall length
• 7/16" hex shank with ball groove for quick-change tools
• Two-cutter design for maximum drilling efficiency
• Aggressive spur provides fast material penetration
• Open tooth design allows for multiple resharpenings

Applications: Boring holes in wood for running pipe, electrical cables, and ductwork. Compatible with quick-change tools and standard drill chucks.