portion 28 than the first aperture 14 and the fourth 20 of the apertures centered at a fourth position 32 in the blade holder 12 next to said third aperture and further away from the upper portion 28 than said second apertures 16 and 18 also in the preferred embodiment the center position of the third aperture 18 is further away from the upper portion 28 than said second apertures 16 this positioning of the finger holes or grips 14 20 permits an ergonomically correct positioning of the hand while using said apparatus 10 preferably the blade holder 12 is fabricated out of a single block of material such as aluminum plastic or a zinc alloy fig1 a is a side view of a preferred embodiment of a comb blade assembly 34 for insertion in a slot 36 of the blade holder 12 included in the comb blade assembly 34 is a straight razor blade 38 which is secured to a comb 40 the assembly 34 can also include a support member 42 which in this case is formed from a u shaped portion of the comb 40 various other arrangements can be used to secure a blade and comb assembly in a blade holder such as shown in u s pat no 5 220 728 fig2 is a perspective view of the hair cutting.