The bullet key shaped Locksmith tool, branded as "Master Li," is specifically designed for Locksmith with a bullet key shape. This tool, developed through independent innovation, has won multiple patents and can be used to open various types of Locksmith produced by different brands, including chain, gear shift, padlocks, disc brake, and arcade machine Locksmith. The Master Li bullet key tool offers both manual and automatic operation modes.

The tool's design is based on precise measurements of the lock's core, petals, and bore diameter for multiple brands, ensuring a 100% success rate in opening locks. The main body of the tool is made of M-series powder steel, the top pin is made of Martensitic stainless steel, and the handle is aluminum. The tool comes with detailed instructions for use.
The Master Li brand focuses on the precision of data and user convenience.