Tungaloy Corporation（タンガロイ） on Instagram: "Check out our Hardbreaker Series - CBN inserts with integrated chipbreaker for improved hard turning productivity! Cutting conditions👇 Machining video #1: ✔ Insert: 2QP-CNGM120408-HP BXA20 ✔ Vc = 150 m/min ✔ f = 0.15 mm/rev ✔ ap = 0.15 mm ✔ Workpiece material: SCM420/18CrMo4 Machining video #2: ✔ Hardbreaker HP insert: 2QP-CNGM120408-HP BXM10 ✔ Conventional insert: 2QP-CNGA120408 BXM10 ✔ Vc = 150 m/min ✔ f = 0.15 mm/rev ✔ ap = 0.15 mm ✔ Workpiece mate