Testing fancy ground Chinese cobalt drill bits

I'm trying out these stepped ground M42 cobalt drill bits while finishing the boring bar holder I was making for my old Karger lathe. Are these rather expensive M42 HSS drill bits better then the M35 HSS drills I reviewed last year.

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M35 drill bits: https://www.banggood.com/custlink/vmKDtWR7He M42 drill bits: https://www.banggood.com/custlink/KGm3HJy7ic m3-m12 taps: https://www.banggood.com/custlink/Dm3vPcRw8a

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