http://www.woodcarvingguru.com/razor-blades/
How often should you change your razor blades?
When shaving your face with a Gillette Fusion razor to have a wet shave. How often should you disgard the blade on the razor and replace it with a new one.
volusian… , very good answer, but I am speaking on general terms and wondering on average to when razor blades should be changed.
every 3 months