Club Cutting, Free Hand & Scissor Over Comb
A: Club cutting is actually the standard haircut technique of cutting the hair to create a smooth blended look without texture. It creates uniform lengths or smoothly graduated layers.
Free-hand cutting is just what it sounds like. The stylist uses his/her scissors to cut the hair without holding it in the other hand's fingers or using any other tool to hold the hair in place.
Most often, cutting is down with the scissors pointed down at an angle, but can be cut upward. This technique creates a lot of texture in the style. Free-hand cutting is often used as a texturing technique.
Finally, the scissors-over-comb method is performed with the stylist holding a comb in what would normally be his/her "holding" hand. The comb is used to elevate segments of the hair which are then cut by the scissors which are held in the cutting hand. The stationary blade (the lower blade) is positioned so as to be parallel to the comb. This technique is ideal for blending and cutting very short hairstyles without using clippers.
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See also:
How to cut hair
How to cut uniform layers
What is cutting up, down, in and out, freehand, and channel cutting?
Could you please describe the techniques for chipping and slicing?