Full series of various hole saws for cutting holes in various steel, iron, cast, stainless steel, inox, etc. 1. Bimetal Hole Saw: HSS M3, M42 Bimetal Hole Saws for different cutting purposes choice. Diameter: 14mm to 210mm, max cutting depth: 38mm. For metal, steel, iron, stainless steel, etc. 2. HSS Hole Saw: HSS 9341 AND HSS M2 hole saws for only professional metal cutting. Suitable to cut ...