6 Pcs Metric 60 Degree Lathe Mill HSS Center Drill Combined Countersinks Drill Bit
#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 10mm body diameter & 4mm drill tip diameter
#6 with 12mm body diameter & 5mm drill tip diameter