Greenfield Industries 14405 5303 5 8-18 NF H3 Tap Set is a precision tapping kit designed for cutting 8-18 National Fine (NF) threads with H3 tolerance. It is used to create internal threads in metal components so fasteners can be threaded securely. The set is identified by Greenfield part numbers 14405 and 5303, linking it to the Greenfield taps family that supports 8-18 NF H3 specifications.
