Standard Pack = 1 piece(s). Tap Size = Number4 ; TPI / Pitch = 40 ; Tap Style = Spiral Point ; Thread Type = UNC ; Thread Limit = H4 ; Chamfer = 4P - 4.5P ; Flutes = 2 ; Material = HSSE ; Coating = Steam Oxide ; Overall Length = 1-7/8 inch ; Thread Length = 9/16 inch ; Shank Diameter = 0.141 inch ; Square Size = 0.110 inch ; Coolant Thru = No ; Length = 2.95 ; Width = 0.4 ; Height = 0.3 ;