Diameter: 1-1/8"Depth Of Cut: Approximately 1-7/8"For Pipe Tap: 1"For Pipe Entrance: 3/4"Use With LEN4L Or LEN5L ArborPatented Tooth Designed And Configuration Which Provides Long Life And Fast Cutting In A Wide Variety Of MaterialsEnhanced Tooth Geometry, A Thin Kerf Designed, And An Advanced Coating Contribute To The Efficiency Of The Cutting ProcessSPEED SLOT Features A Staircase Designed For Easy Plug Removal