Description:

The Irwin RSF458 Self Feed Bit 4-5/8" is engineered for large-diameter hole cutting in wood under heavy-duty drilling conditions. Forged from high carbon steel and built with an aggressive screw pitch for strong, consistent feed performance.

Ideal for plumbers, electricians, and contractors boring large holes for pipe, conduit, and mechanical installations in dry, wet, or treated lumber.

Specifications:

• Diameter: 4-5/8"

• 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 or 12