Abstract: A hair design tool device having a handle, razor cartridge saddle and razor cartridge wherein the handle has a channel defining a closed edge and open edge defining a saddle sleeve for receiving the saddle in the closed position wherein the saddle is pivotally connected to the handle. The saddle defines a closed edge that mates with the handle channel and a channel for slidably receiving the razor cartridge which supports a razor and has a plurality of spaced prongs to define razor access openings with the edge of the razor being recessed in the frame for preventing inadvertent contact with the head or fingers. The razor cartridge may extend past the free end of the saddle for cutting thin strands of hair without pushing adjacent strands of hair. The handle may be fixed wherein the razor cartridge extends out one or both ends.