Ask Aaron Q/A: Numbers on double edge razor blades

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Nigel Horton, from the UK, asks:

“Hi, I am new to shaving and have some Derby blades and Feather blades to use with my Edwin Jagger DE89 razor, I was wondering if it matters which way around you put the razor blades in, as I notice one side of the Derby blade has 1 and 2 printed in opposite corners and the other side has 3 and 4. What do these numbers signify and would flipping over my blades help my shave?”

Feather Hi-Stainless Double Edged Razor Blades
Feather Hi-Stainless Double Edged Razor Blades


This is a great question! Those numbers are there primarily for the manufacturer and really have no bearing on the shave itself. There have been some legends saying that if you keep track of the numbers you can flip the blade thus getting more shave from the blade. However it has been my experience and the experience of others that this does not work. Despite the flipping you’re still using the same blade edge and once it’s dull, it’s dull. So enjoy your blades and have a great shave!

Smooth Shaving!

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Established in 2005, The Shaving Shack is your number one online traditional shaving shop. As one of Europe’s leading online shaving retailers, we pride ourselves on bringing you the best in double edge shaving, as well as men’s skincare and men’s grooming products. We’ve got shaving brushes, double edge safety razors, cut throat razors, shaving soaps, soap bowls, shaving creams, shaving sets and other shaving accessories to suit every budget.

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