Hole Cutters Hole Cutter Primary Saw Application Metal Saw Dia 4 3/8 in Max Cutting Depth 3/16 in Arbor Design Built-In Tooth Material Carbide Tipped Number of Teeth 8 Shank Size 3/8 in Pilot Drill Size 1/4 in dia Replacement Pilot Drill No Mfr No CTSP Application Sheet Metal Stainless Steel Pipe Aluminum PVC/ABS Plastic