Product Info Catalog Tools Power Drill, Bits & Accessories 1-1/4-Inch to 2-1/2-Inch Hole Saw Mandrel 1-1/4-Inch to 2-1/2-Inch Hole Saw Mandrel Request a Quote UPC: 52088049242 SKU: 140852 Model Number: 140852 Master Mechanic, Saw Mandrel, Large, Fits 1-1/4" - 2-1/2" Hole Saws.