Thread: couple of noob questions

The numbers are for manufacturing purposes only.

A double edge razor blade is just that, "double edged". There are only two edges, not four. Each opposite side of the blade has an edge. There is no need to flip a blade. If you want to, fine, do it. Whether you flip or not, you are still using the same edge. The more you handle a blade, the more you are apt to dull it one way or another.

Originally Posted by redtruck

Why do the blades have numbers on them? Why exactly do you need two edges? is it so you dont have to rinse as much? are you supposed to use one side one time, and the other the next?
How long should I expect each blade to last?

Thanks for answering my dumb questions.

red

The same reason other mechanical parts have numbers on them,,, manufacturing specifics, inventory,,, etc.,,,

You don't need two edges,,,, for many years there was only one edge,,,,for example straight razors & single edge blades.

Some people don't rinse,,, they wipe , swish in a bowl of water,,,,,,,

You can use any side, whenever you want, your imagination is the limit,,,,,

Many factors decide how long a blade lasts,,, brand, care & maintenance, beard/facial hair type, preshave preparation, creams, soaps, etc,,,,,,,