INCLUDES: (1) 1-3/8 in. Carbide Tipped Hole Saw FEATURES: Tungsten carbide tipped for long life Aggressive tooth form for fast cutting Wide angled offset slots for easy plug access Works with the following arbors: 49-56-7240 49-56-7250 49-56-9100 49-56-7055 49-56-7040 SPECIFICATIONS: Hole Diameter 1-3/8 in. RPM Fiberglass 980 PM Brick Ceramic Tile 280 RPM Phenolic 420 Milwaukee carbide tipped hole saws provide long life and faster cutting in cement board ceramic tiles fiberglass and wood products such as fiberboard flakeboard and plywood. Use a carbide tipped pilot bit (49-56-8005) when cutting ceramic tile brick and other abrasive materials.