... manufacture 2,TCT,Bi-mental,HSS hole saw 3,cutting wood,steel 4:size14~380mm HSS BIMETAL HOLE SAW*HSS M42 teeth ... will extend the life of your hole saw by 500%.*Our HSS Bimetal hole saws with HSS teeth are rugged ... machines, which have rotating spindles.*Our HSS Bimetal hole saws are recommended for cutting steel, cast iron pipe ... , brass, stainless steel, wood and plastic, etc.Bimetal hole saw size: