Irwin 3 Inch x 5 Inch Self Feed Bit — RSF3

The Irwin RSF3 Self Feed Bit is built for drilling large-diameter holes in wood under demanding job site conditions. Forged in one piece from high carbon steel, it features an aggressive screw pitch for strong feed performance and reduced runout. The 7/16 inch quick-change hex shank fits 1/2 inch or larger drills. Ideal for plumbers, electricians, and contractors boring holes for pipe, conduit, and mechanical runs in structural lumber.

• Brand: Irwin
• Part Number / SKU: RSF3
• Diameter: 3 Inch
• Overall Length: 5 Inch
• Shank: 7/16 Inch Hex (Quick Change, fits 1/2" or larger drills)
• Material: Forged High Carbon Steel (One-Piece Design)
• Screw Point: Replaceable
• Application: Wood boring for pipe, conduit, and mechanical installations

Available Variants:

• (1) Bit
• 12 Pack

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