Greenlee® - Bi-Metal Hole SawApplication:Bi-Metal Hole Saw with 1-5/8 In cutting depth, allowing cutting on 2x4 studs. Extra-thick backplate minimizes vibration for smoother, easier cutting.Arbor Size:1/4 and 7/16 In shank sizeType:Bi-Metal Hole SawCutting Size:3/4 - 4-3/4 In Conduit sizeIncludes:16 Saw Sizes: 825-3/4, 825-7/8, 825-1, 825-1-1/8, 825-1-3/8, 825-1-1/2, 825-1-3/4, 825-2, 825-2-1/4, 825-2-1/2, 825-3, 825-3-1/4, 825-3-5/8, 825-3-3/4, 825-4-1/8, 825-4-3/42 Arbor with Pilot Drill: 37155, 371561 Pilot Drill: 38526 SKU: GRNL.890 Brand: GREENLEE Country of Manufacture: United States Supplier Part Number: GRNL890