citizens, fire and rescue personnel and law enforcement officers. For his many influences in tactical knife design (most notably the pocket clip, serrations, and opening hole) and many collaborations with custom knife makers, Spyderco's President, Sal Glesser, was inducted into the Blade magazine Cutlery Hall of Fame at the 2000 Blade Show in Atlanta, Georgia. Blade steels Spyderco has experimented with new blade steels over the years. In 1994, it was the first company to use powder metallurgy in a production knife (in the form of Crucible's S60V tool steel), and the first knife company to use H-1 steel in a folding knife. Spyderco's current Steel Chart PDF. The blade steel used by the company over the years include: 154CM an American stainless cutlery steel 52100, a ball bearing steel used in the first run of the Mule project. 8Cr13MoV, a Chinese stainless steel tempered at the RC56 to RC58 range and used in the Tenacious, Persistence, Ambitious, Resilience, Grasshopper, Kiwi3 and Byrd lines of knives. Often compared to AUS-8, but with slightly more carbon. 9Cr18Mo, a Chinese stainless steel used mostly in high-end barbering scissors and surgical tools. 440C, a stainless steel known for corrosion resistance and ease of sharpening. Aogami Super Blue (青紙スーパー), a Japanese high-end steel made by Hitachi. The "Blue" refers not to the color of the steel itself, but the color of the paper in which the raw steel comes wrapped. ATS-55, a performance stainless steel similar to ATS-34 with the molybdenum reduced, used only by Spyderco for knife steels until the early 2000s. AUS-6, similar in quality to 440a, used as a "budget" steel in early Spyderco models. AUS-8, a frequently used Japanese steel, which is known for taking a very fine edge, due to the inclusion of vanadium. Sharpens easily, and has moderate edge holding and corrosion resistance. AUS-10, a Japanese stainless steel series made by Aichi with the same carbon content as 440C but with slightly less chromium. BG-42, a high performance stainless steel formulated for ball bearings, similar to ATS-34 (same composition, but with added vanadium), which has similar properties. CPM S30V steel an American powder-metallurgy, high-carbide steel developed for the cutlery market. CPM-M4 (aka AISI M4), usually tempered to 62-65 HRC, a high-speed steel with combination of high carbon, molybdenum, vanadium, and tungsten for excellent wear resistance and toughness; a powder-metallurgical, non-stainless steel. CPM-S60V, (a.k.a. 440V, a.k.a. CPMT440V), a modern