Starrett Bi-metal holesaws are constructed of hardened, heat & abrasion resisting high speed steel teeth with a tough alloy body & cap. This gives them exceptional strength, durability & shatter resistance for user safety. They will cut any wood, metal or plastic in either a h&-held drill or a drill press. Max. Cutting
Depth: 38 mm.
Size: 56 mm. (2 1/4 inch).