Irwin I-100 series solid center auger bit for boring clean, accurate holes in wood. The solid center design provides extra rigidity while boring, reducing the risk of bending under heavy-duty use. Full-length heat treated carbon steel guards against bending and ensures long bit life.

• Solid center design for extra rigidity and precision
• Carbon steel, full-length heat treated
• Wide lands keep bit straight as it bores
• Ground flutes funnel chips away for cleaner, faster cuts
• Single spur cutting edge scribes the hole for a smooth finish
• 4-1/2" twist length, 7-1/2" overall length
• Hex shank fits 3/8" or larger power drills and hand braces

Ideal for: Framing, electrical and plumbing rough-in, timber work, furniture building, and general carpentry in soft and hard woods.