Hole Saw, Bi-Metal/Speed Slot, Snapback/Standard Arbor, 2 In/50.8 Mm ; This Bi-Metal Speed Slot Hole Saw, With T3 Technology, Has Increased Wall Thickness, Larger And Sharper Teeth, And Easy Plug Ejection. It Works With 2L/6L Snap Back Arbors, And 2L/3L/6L/7L Standard Arbors, And Measures 2 Inches/50.8 Millimetres. It Is Designed For Pipe Entrance Of 1 1/2 Inches/38.1 Millimetres. Wood: Nail-Embedded Wood: Nonferrous Metal: Plastics And Composites: Metal: Stainless Steel: Drywall / Plaster; Materials Cutwood And Metal