Check the listing for details. RapidKut 1/16"-27 Solid Carbide Thread Mill AlTiN Coating Helical Flute USA Made. Condition: New. Listed at 48.99 USD. RAPIDKUT USA MADE SOLID CARBIDE THREAD MILL Thread Size1/16″ Flute Count (NOF)3 Threads per Inch (TPI)27 CoatingALTIN Thread Standard| NPTF | Flute TypeHelical Connection Diameter Machine Side (DCONMS)1/4″ Usable Length (LU)7/16″ Cutting Diameter (DC)0.245″ Measurement TypePipe Overall Length (OAL)‎2-1/2″ Tool TypePipe-NPTF Product FeaturesRemarks•Helical Flute Thread Mills ? NPT, NPTF, Pipe Threads •Shank Diameter -.0001 to -.0003″Cutter Diameter ±.0005″Length of Cut +.050 to .000″Overall Length ±.015″T.I.R. Maximum .0005″ •Completely CNC ground. •Helical flute design for reduced cutting forces, smoother cuts, longest tool life, and maximum thread milling performance. •100% thread form; superior threads vs. tapping. •Cuts right hand and left hand high quality threads. •Suitable for all types of materials, including heat treated and difficult to machine workpieces. •Morse Cutting Tools: Supplied with AlTiN coating only