Total length (mm): 200. Mouth opening (mm): 8 to 30. Tightening / removing bolt / nut. It is with a convenient scale. Lobtex is a Japanese manufacturer who manufactures and sells power tools, fastening tools, industrial fasteners, electric tooling, cutting tools, etc. [LOBSTER (Shrimp Mark)] The Lobster brand is one that many people are familiar with around the world. It is the name of a crustacean with large pincers that inhabits the coastal waters of the Pacific Ocean in North America. The reason behind how it came to be used as our brand is that lobster is considered to be fortunate and a symbol of "long life" and "strongness" in Japan: thus we adopted lobster as a brand representing "long-lasting" and "heavy-duty" tools. As a professional tool deserving its derivation, "LOBSTER" brand has gained a reputation for high reliability and been loved all over the world. Going forward, we will continue to provide products of the highest quality under the Lobster brand. The "LOBSTER (Ebijirushi- kougu)"brand tools has 120 years of history and we, at LOBTEX, presently specialize in large varieties of tools to meet the needs of professional and home use. The line-up : general hand tools, electrician tools, fastener and fastening tools, diamond tools, tipped saws and hole saws, tool set. [Lobtex] In 1888, Lobtex invented double-handed hair clippers as an alternative to expensive hair clippers, which was generally expensive, and spread them widely in the barber industry. Since 1928, Lobtex has been making tools that everyone can use at reasonable prices and with high quality.