2.0Mm Min Bore Guhring Bore/Profie Rh Wiper System 104 Insert, 0.15Mm (T-Max) Offset, 7Mm Reach, Tin Coated Right Hand, 0.10Mm Radius, Tin Coated Gj104.2319.010.07.20.R, Tin Coated Type Gj104 Guhring Micro-Precision System 104 Carbide Stick Insert With 4Mm Quick Change Shank For Boring & Profiling With Wiper Geometry. Guhring Series No. 25090 Order Code 4.002 Made In Germany, Guhring Part #9250900040020 Guhring Inc.