Check the listing for details. 5Pcs High Speed Steel Drill Point Countersinks Center Set w/ Both Ends for Lathe. Color: Silver, Condition: New. Listed at 10.71 USD. [SEE THE VIDEO PLEASE!] Video will open in a new window Features: 100% quality and Brand new.Material HSSColor :Silver ToneHigh Speed SteelStandard 60 degree included angleprecision importdouble endedSpecification: This listing is for a set of 5 HSS Center DrillsIt includes 1 each of sizes #1, #2, #3, #4 and #5Each drill has a double end and is ground with a standard 60 degree included angleThe set includes 1 each of the following sizes: #1 with 3mm 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 diameterUsage: 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 walkingUsed for producing center holds in components or work pieces with require machining between centersPackage Included: 1x a set of 5 HSS Center Drills