Features: 100% quality and Brand new. Material HSS Color :Silver Tone High Speed Steel Standard 60 degree included angle precision import double ended Specification: This listing is for a set of 5 HSS Center Drills It includes 1 each of sizes #1, #2, #3, #4 and #5 Each drill has a double end and is ground with a standard 60 degree included angle The set includes 1 each of the following sizes: #1 with 4mm body diameter & 1mm drill tip diameter #2 with 4mm body diameter & 1.5mm drill tip diameter #3 with 6mm body diameter & 2.5mm drill tip diameter #4 with 8mm body diameter & 3.15 drill tip diameter #5 with 12mm body diameter & 5mm drill tip diameter Usage: Center and spotting drills are traditionally used to make a conical hole for a lathe center in order to make a starting point.
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