(1) Starting torque ≥ 20Nm

(2) Cutter hardness HRC56-58; Toughness: (normal temperature AKU): 17~27; V-notch impact toughness after tempering is not less than 17J

(3) Bearing: TIMKEN

(4) Floating seal: Italy GNL imported

(5) Tool component material: 42CrMo HRC40±2

(6) Lubricating oil model: Shell SHEL460

(7) Wear-resistant welding wire: imported wear-resistant welding wire, hardness after surfacing HRC56-60