To commemorate its 100 anniversary, Narex developed a new line of Richter Extra premium bench chisels named after their founder. The Richter Extra chisels are the finest chisels Narex has produced in its 100 year history. This line of chisels are made from the finest materials available, have undergone superior heat treatment and been manufactured using the most stringent manufacturing processes. The new line of Richter Extra chisels will rival any premium chisel on the market today. BLADES: Richter chisel blades are made from the highest quality Chrome Vanadium (Cr-V) steel using traditional drop-forging methods. Blades are then hardened, cryogenically treated and tempered to achieve a minimal hardness of 62 HRc. Subsequent fine-grinding and polishing ensure a mirror-like surface with ultra-thin sides allowing reach into very tight spaces, making them the perfect chisel for cleaning out dovetails. The front bevel is ground at 24 degrees. CRYOGENIC TREATMENT: Following initial hardening, cryogenic treatment is performed which cools the steel down to −190° C (-310° F) using liquid nitrogen. This alters the mechanical properties of the steel at the molecular level greatly increasing its strength, toughness and wear resistance. HANDLES: Richter chisel handles are made of domestically and responsibly harvested European Ash known for its strength, toughness and attractive grain. The ergonomic handles are sanded and then receive a friction shellac finish for maximum protection, comfort and control. Solid stainless-steel ferrules protect the handles from splitting, and leather washers absorb the shock of mallet blows. LIFETIME GUARANTEE Narex Richter Chisels come with a lifetime guarantee. In the case of a manufacturer defect in material, design or construction, a free replacement or repair will be provided. This guarantee will be void and compensation will not be made if products are damaged due to carelessness, neglect or inappropriate use.