Zwilling J.A. Henckels proudly presents this line of Bob Kramer Knives. This unique collection features straight carbon steel blades. Bob Kramer is known worldwide as the only "Master Bladesmith" that specializes in straight carbon steel knives for the kitchen. Each blade is formulated from the original 52100 carbon steel used in Bob Kramer's workshop. Carbon Steel delivers extreme long lasting razor-like sharpness. In addition, the carbon steel knife blade undergoes a special hardening process which results in a 61 Rockwell hardness and exceptional cutting edge retention. The blade is hand-honed in the traditional 3-step method and features a 15 degree blade angle on each side. To complete this exquisite collection, the blade is paired with an African Blackwood Handle with brass rivets and the Kramer signature mosaic pin. These Bob Kramer knives will become better with age and become an heirloom. Made in Japan.