26Tpi Full Profile Guhring Whitworth I.D. Thread Rh System 104 Insert, 17Mm Reach, Tin Coated 26Tpi, 17Mm Reach, Right Hand Gg104.Vw26.098.17.49.R, Tin Coated Type Gg104 Guhring Micro-Precision System 104 Carbide Stick Insert With 4Mm Quick Change Shank For Full Profile Whitworth Pipe Threads. Guhring Series No. 25180 Order Code 4.002 Made In Germany, Guhring Part #9251800040020 Guhring Inc.