Conical handle: Tolerance grade AT3, heat-treated hardness: HRC50-52, material: 42CrMo, body precision: 0.003mm.
Product advantages: Vacuum heat treatment, uniform quenching with high hardness, good anti-vibration effect. The conical handle tolerance grade is ≤ AT3, all tested on standard gauges from Germany’s DIEBOLD, ensuring accurate and stable precision positioning.