Description
Double clamp boring bar for holding a triangular negative insert with an inscribed circle diameter of 9.525mm, 4.76mm thick (ISO designation TN.. 1604.. ), right hand 90° end cutting with off-set shank according to ISO 26623 (Polygon Shank Coupling) size C4, with 17mm funtional width and 90mm protruding length for internal chamfering, taper boring and longitudinal boring without shoulder