1.5Mm Width Guhring Straight Face Groove Rh System 104 Insert, 3.0Mm Depth, 17Mm Reach, Tin Coated 1.5Mm Width, 3.0Mm Depth, 17Mm Reach Ga104.0150.005.17.40.R, Tin Coated Type Ga104 Guhring Micro-Precision System 104 Carbide Stick Straight Face Grooving Insert, 4Mm Minimum Circle Diameter. Guhring Series No. 25188 Order Code 4.004 Made In Germany, Guhring Part #9251880040040 Guhring Inc.