Standard Pack = 1 piece(s). Tap Size = 1/4 inch ; TPI / Pitch = 18 ; Tap Style = Pipe ; Thread Type = NPSF ; Chamfer = 4P ; Flutes = 4 ; Material = HSS ; Coating = BRIGHT ; Overall Length = 2-7/16 inch ; Thread Length = 1-1/16 inch ; Shank Diameter = 0.563 inch ; Square Size = 0.421 inch ; Coolant Thru = No ; Length = 3.8 ; Width = 0.95 ; Height = 0.85 ;