3.0Mm Min Bore Guhring Bore/Profie Rh Wiper System 104 Insert, 0.20Mm (T-Max) Offset, 22Mm Reach, Uncoated Right Hand, 0.15Mm Radius, Bright Uncoated Gj104.2326.015.22.30.R, Uncoated Type Gj104 Guhring Micro-Precision System 104 Carbide Stick Insert With 4Mm Quick Change Shank For Boring & Profiling With Wiper Geometry. Guhring Series No. 25096 Order Code 4.008 Made In Germany, Guhring Part #9250960040080 Guhring Inc.