1.17Mm Width, 4.0Mm Min Bore, Guhring Rh Full Radius I.D. Groove System 104 Insert, 17Mm Reach, Tin Coated 1.17Mm Width, 1.00Mm Depth, 17Mm Reach Ge104.0117.058.17.40.R, Tin Coated Type Ge104 Guhring Micro-Precision System 104 Carbide Stick Insert With 4Mm Quick Change Shank For Internal Grooving Full Radius Slots. Guhring Series No. 25132 Order Code 4.011 Made In Germany, Guhring Part #9251320040110 Guhring Inc.