Hole Cutters Hole Cutter Primary Saw Application Metal Saw Dia 2 1/4 in Max Cutting Depth 1 in Arbor Design Built-In Tooth Material Carbide Tipped Number of Teeth 6 Shank Size 3/8 in Pilot Drill Size 1/4 in dia Replacement Pilot Drill No Mfr No CTDP Application Sheet Metal Stainless Steel Pipe Aluminum PVC/ABS Plastic