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Bevel, wedge, stack...no matter what you call it, elevated layering at the ends of a bob cut lends the one-length classic visual interest. The beveled layers lay on one another, creating volume and a "stacked out" appearance at the bottom of the cut. For a cut that usually hangs limp and straight, bevels could be all it takes to transform this cut from ordinary to extraordinary. Leave the straight and boring life behind, and add interest with some varying length.
Wet down your bob haircut. Comb through it and part it in the middle.
Make a part running from the top of one ear to the other. It should run across your head, dividing the front of your hair from the back of your hair.
Carve out a horizontal part on the back of your head, running straight across your occipital bone, the bumpy bone on the back of your head. Pin everything above the bone up and leave everything under it hanging free.
Hold the hair at the nape of your head at a 45-degree angle from your head, keeping only about 1 to 1 1/2 inches of air between the ends of your hair and your scalp. Hold the hair between the first two fingers of your left hand close to the ends and snip off about 1/4 inch.
Loosen about an inch of hair from the pins on the back of your head. Comb it down into the hair at the nape that you already cut. Hold all the hair at a 45-degree angle, and snip the hair that hangs over the previously cut hair along the same lines as the first cut. Use the first cut as you would a template or stencil.
Keep pulling down hair in 1-inch sections and cutting at a 45-degree angle until all the hair is cut.
Cut the sides of the hair in the same manner, using the back as a guide. Make sure that all of the cuts from the front and back line up and connect with each other.
There's a difference between bevels and layers. Keep the angle that you hold the hair at or less than 45 degrees, to avoid changing your bob cut into a shag.
Put those craft scissors down! Do not cut your hair with any type of scissor except hair-cutting scissors. Craft and kitchen scissors cut paper and packaging, not hair. Hair requires a sharper scissor. Cutting hair with dull scissors results in frayed edges and an uneven cut.