HORN is expanding its circular milling portfolio for productive thread milling up to hole diameters of 8 mm (0.315"). The insert has a cutting circle of 7.7 mm (0.303"). In conjunction with the vibration-damping carbide shank, this makes it more flexible to use than solid carbide groove milling cutters. The substrate and geometry can be easily matched to the machining process. The shanks feature internal cooling for targeted cooling of the contact zone.