... steel, iron, cast, stainless steel, inox, etc.Bimetal Hole Saw: HSS M3, M42 Bimetal Hole Saws for different cutting purposes choice ... : 38mm. For metal, steel, iron, stainless steel, etc.HSS Hole Saw: HSS 9341 AND HSS M2 hole saws for only professional metal cutting. Suitable ... hole saws are available upon customer's different special requests HSS BI-METAL HOLE SAW