Titan USA TT92756 Pulley Taps; Thread Size (Inch): 1/2-13; Thread Limit: H3; Class of Fit: 2B/3B; Number of Flutes: 4; Chamfer: Plug; Overall Length (Inch): 10; Tap Type: Extension; Finish/Coating: Uncoated; Thread Standard: UNC; Flute Direction: Rig