What is the main function of a barber's straight razor?

The main function of a barber's straight razor is to provide a close shave. This traditional tool is designed with a very sharp blade that can glide over the skin, allowing barbers to achieve an exceptionally smooth finish when shaving facial hair. The precision of a straight razor makes it ideal for creating clean lines and details, which enhances the overall grooming experience for clients. In addition to the close shave, the straight razor is often associated with a classic barbershop experience, bringing a sense of nostalgia and craftsmanship to men's grooming.

The other options relate to different hair care and styling techniques that typically do not involve the use of a straight razor. Trimming split ends typically requires scissors, while styling long hair relies on various tools and techniques suited for that purpose. Removing bulk from hair may involve the use of thinning shears or clippers instead of a straight razor.