Material:Premium20CrMnTi Heat Treatment Hardness:HRC58-60 Body Precision:0.003 Surface Roughness:Ra <0.005 Features:采用台湾品牌钻夹头,爪部镀钛加硬、夹持力大、精度高、韧性强、不易裂 | Features:采用台湾品牌钻夹头,爪部镀钛加硬、夹持力大、精度高、韧性强、不易裂 20220617140744_21661.jpg 20220617140808_69078.jpg