M5/M6 X .80-1.00Mm Pitch Partial Profile Guhring I.D. Thread Lh System 104 Insert, 12Mm Reach, Nano-A Coated M5.0/M6.0, 0.80-1.00Mm Pitch, 12Mm Reach Gg104.Tm05.080.12.40.L, Nano-A Coated Type Gg104 Guhring Micro-Precision System 104 Carbide Stick Insert With 4Mm Quick Change Shank For Partial Profile Metric Threads. Guhring Series No. 25151 Order Code 4.010 Made In Germany, Guhring Part #9251510040100 Guhring Inc.