7/16-20 4 Flute HSSE GH4 Spiral Flute Tap M787322 $27.08 Country/Region of Manufacture Unknown MPN M787322 Brand Paradur Tap Thread Size 7/16 in - 20 condition New – Open box 7/16-20 4 Flute HSSE GH4 Spiral Flute Tap M787322Shank Diameter .323"Square .241"Overall Length 3.165"Recommended for tapping nickel alloys