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Irwin Diameter – 3″, x 5″, Self Feed bit w/ – 7/16″ Shank

Description:

The Irwin RSF3 Self Feed Bit 3" 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.

Ideal for plumbers, electricians, and contractors boring holes for pipe, conduit, and mechanical runs in structural lumber.

Specifications:

  • Diameter: 3"

  • Shank: 7/16" Quick Change (Fits 1/2" or Larger Drills)

  • Material: Forged High Carbon Steel

  • Screw Point: Replaceable Coarse Thread

  • Construction: One-Piece Design

  • Application: Wood Boring / Pipe & Conduit Installation

  • Pack Size: 1, 12

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