Manufacturer Part Number: 1290001|Tap Type|HandChamfer|PlugOverall Length|6inThread Size|1/4-20 inThread Pitch|Thread Length (Decimal Inch)|1Thread Depth|Threads per Inch|20Thread Limit|H3Thread Standard|UNCFlute Direction|Right HandMaterial|High-Speed SteelMaterial Application|Aluminum; Cast Aluminum; Cast Iron; High Carbon Steel; Low Carbon Steel; Medium Carbon SteelFinish|OxideShank Diameter|0.2550inSquare Length|0.3125Application|Carbon Steels; Cast IronSquare Size|0.191in75% Thread Drill Size|Series|916Class Of Fit|Number Of Flutes|4.0UNSPSC Code|