Irwin 373512BX Bimetal Hole Saw, 5-1/2"

Highlights:

• Sharp, variable tooth design for fast cutting
• Bi-metal construction for toughness & long life
• Variable depth gullets for chip clearance
• 4/6 variable pitch teeth for reduced noise
• Cut: aluminum, copper, iron, steel, wood, zinc
• Boxed/1 piece
• 5-1/2" dia