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Features: 100% brand new and high quality. This listing is for a set of 5 HSS center drills. Plain style 60 centigrades angle used for producing center holes in workpieces which require precision drilling or machining between centers It also used as starter holes to prevent a drill bit from "walking". Center and spotting drills are traditionally used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking. Used for producing center holds in components or work pieces with require machining between centers.