Product Info Catalog Tools Power Drill, Bits & Accessories 3/8-Inch Hex-Shank Hole Saw Mandrel 3/8-Inch Hex-Shank Hole Saw Mandrel Request a Quote UPC: 52088053911 SKU: 896313 Model Number: 896313 Master Mechanic, 3/8" Bi-Metal Hole Saw Mandrel, Hex Shank, For 3/4" - 2" Hole Saws.