Braun Series 8 Shaver Head 83MThe estimated lifespan of your Braun shaver is 7 years The average Braun shaver shaves 6,000,000 beards every 18 months. This can lead to natural wear of certain elements of the Braun Series 8 Combipack 83M shaving head. To keep shaving as good as possible, Braun recommends replacing the razor blade every 18 months. How to replace the Braun Series 8 Combipack 83M shaving head The Braun Series 8 Combipack 83M shaving head is easy to replace. Squeeze