M5/M6 X .80-1.00Mm Pitch Partial Profile Guhring I.D. Thread Lh System 104 Insert, 22Mm Reach, Uncoated M5.0/M6.0, 0.80-1.00Mm Pitch, 22Mm Reach Gg104.Tm05.080.22.40.L, Uncoated Type Gg104 Guhring Micro-Precision System 104 Carbide Stick Insert With 4Mm Quick Change Shank For Partial Profile Metric Threads. Guhring Series No. 25155 Order Code 4.012 Made In Germany, Guhring Part #9251550040120 Guhring Inc.