Tojiro 120mm 'DP' petty knife. VG-10 steel core with stainless cladding, western style riveted handle. HRC 60-61. 233mm overall, 120mm cutting edge height at heel 25mm, 65 grams Tojiro's DP series are made with a three layered blade. VG-10 stainless steel is the cutting edge at the core, and it is clad with stainless. A great heavy-use work horse, VG-10 is typically not our favorite steel to sharpen due to the wear-resistance from it's cobalt content. However, it commands long edge life and is fairly low maintenance. The handles are made of black stamina wood; which is an extremely stable material fabricated with resin-impregnated wood veneers that have been compressed under high heat. Tojiro was founded in 1953 in Niigate and have been making affordable, high-quality knives ever since. They are one of the largest knife makers in Japan. They utilize a variety of steels in their knives, stainless and carbon, and both traditional Japanese knives and Western style double bevel knives are available.