Irwin 373378BX 373378BX - BI-METAL 3-7/8 HOLE SAW BOXED

373378BX Boxed Bi-Metal Hole Saw - 3-7/8" (98 mm) Diameter. Standard Features: Variable depth gullets provide more efficient chip clearance. 4/6 Variable pitch teeth for reduced noise and improved performance. Electron beam weld for stronger, longer lasting teeth. Bi-metal construction for toughness and long life. Cutting Diameter: 3-7/8" (98 mm). Pipe Entrance: NA. Pipe Tap: NA. Material: Bi-Metal. Recommended RPM (In Steel): 85.