Starrett Bi Metal Holesaws
Constructed of hardened, heat and abrasion resisting high speed steel teeth with a tough alloy body and cap. This gives them exceptional strength, durability and shatter resistance for user safety. They will cut any wood, metal or plastic in either a hand-held drill or drill press. Mainly used for thin sheet metal because of their constant six-pitch teeth. The cutting depth is 1.5/8″.