4 Inch (102mm) M42 Bi-Metal Hole Saw, Triangular Shank Hole Saw Drill Bit with Spring Tools for Wood, Plywood, Plastic, Gypsum Board, Various Thin Metal Sheets ZHIXING Cast in antique brass-plated solid

Cast in antique brass-plated solid metal

1-1/2 Inch

Reasonable Design: The connecting rod of Japanese screw punches is made of brass

Fit for Broan-Nutone BWS1304BLS

allowing fresh air to flow in while keeping critters out

4 Inch (102mm) M42 Bi-Metal Hole Saw, Triangular Shank Hole Saw Drill Bit with Spring Tools for Wood, Plywood, Plastic, Gypsum Board, Various Thin Metal Sheets ZHIXING Cast in antique brass-plated solidAbout this item High Quality Materials: Crafted from premium high speed steel, this tool is highly durable with excellent hardness, heat resistance, and wear resistance; It maintains a sharp cutting edge even at high temperatures, performs well on hard materials, and resists deformation and annealing during extended, high speed use; Its superior wear resistance ensures longevity and effective performance for heavy duty processing Smooth Usage