In cooking, a chef’sknife (cook’s knife) is a cutting tool used in food preparation. It is the primary general utility knife for mostWestern cooks.1 In saddle noses, revision cases, and some traumatic cases, I have been using costal cartilages (fifth through ninth) for 16 years, and Iwas constantly in searchof thesurgicalequivalentofachef’s knife to sculpture costal cartilage. Until 6 years ago, I used to takethemiddlepartof thecartilagetopreventwarpingandalsoused 2to 3-mm-thick grafts. Then, in 2009, I learned the oblique split technique from Eren Tastan, MD, at the Second Annual Meeting of the Turkish Society of Facial Plastic Surgery.2 Thereafter, it became the technique I most often use in obtaining grafts from costal cartilages for the following reasons: 1. The integrity of theouter and inner cortex is preserved.Myclinical observation is that there is less likelihood of warping and resorption. 2. The length of the grafts can be adjusted depending on the angle of cut and the size of the cartilage at hand. 3. The thickness of the cut implants can also be adjusted. 4. More implantscanbeobtainedfrom1ribcomparedwiththetechnique I used previously. Whilecutting theslices, the first instrumentsusedwere theNos. 11, 15, and 20 scalpels. Although cutting the slices was usually successful, I was not comfortable using these scalpels tomake precise and clean cuts, which necessitated spendingmore time on further refinements.Thiswasbecausethethicknessesof thecartilageswere usually 2 to 3mm. Five years ago, low-profile microtome blades and dermatome blades, which make cleaner and more precise cuts, came into use. Four years ago, a pathologist, Mine Hekimgil, MD, added a special handle (the Feather F-80 trimming handle) to use with low-profile microtomeblades. Thiswas composedof apolysulfonehandlewith metalguide tousewith80-mmdisposablemicrotomeblades. Itwas a very good tool formanipulating the thin, super-sharp, low-profile microtomeblades.Thesedisposablebladeswerealsovery inexpensive and came in cartridges of 50. The use of handle made themanipulation of low-profile microtome blades much easier. However, 2problemswereencountered: (1)When thebladewas inserted into the handle, the cutting height was reduced to 3 mm, which sometimesmade it impossible toobtain a cleancutting surfaceand toadjust the desired shape and thickness because the resulting height of the costal cartilage changed from5 to8mm. (2)When therewas anossified focuswithin thecartilage, itwasnoteasy toapplyenough pressure on the blade to complete the cut. I discussed this problem with a local distributor of pathology equipment. He suggested the use of a Feather F-130 trimming Video at jamafacialplasticsurgery.com