Lenox Bi-Metal Hole saw

Lenoz shatterproof bi-metal holesaws are made of high speed cutting edges with hardness RC63-65 electron-beam welded to spring steel back. Its vari-tooth form give less vibration and smoother cuts. Cuts through metal, wood, nail-embedded wood, plastics, and stainless steel. – M2 HSS cutting edgw RC63-65 hardness – Spring steel back – 1-1/2″(38mm) cutting dept *(Some arbors limit cutting edgw depth to 1-3/8″ / 35mm)