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一种加工芳纶复合材料的鱼鳞钻,包括鱼鳞钻的刃部,以及与刃部连接的柄部,其中,所述刃部上钻尖的两条主切削刃的向心角为14°~16°,所述刃部的上侧刃是由切削单元组成;所述刃部上侧刃的螺旋角为28°~30°;本实用新
A scale drill for processing aramid composite material, comprising a blade part of a scale drill and a handle part connected with the blade part, wherein a centripetal angle of two major cutting edges of the drill tip on the blade part is 14 ° ~ 16 °, the upper edge of the blade is composed of cutting unit; the blade upper edge of the helix angle of 28 ° ~ 30 °; the utility model