How does a Lishi tool work?

Followed by the previous video, in this video, Mr. Li is showing you how a Lishi tool works inside a GM HU100 cutaway lock, when a Lishi single pick (aka. Lishi laser pick) or a Lishi 2-in-1 pick is inserted into the lock cylinder, you put a slight turning force on the Lishi lifter which will then position the pins in the pin-and-tumbler lock so that all of the lower pins rest in the cylinder plug and all of the upper pins rest in the cylinder housing. The whole picking process is to move each pin pair into its correct position, one by one.

How does a Lishi tool work

Mr. Li’s design principle of the Lishi tools is very simple, it’s all based on a concept called “positional lockpicking”. The tools have a lifter arm attached to a pivot that interacts with the lock on one side, the handle on the other and a pointer near the handle side. The pointer corresponds to a grid printed on the reading pane, which provides the user with an accurate reading of not only the space that the tool is interacting with, but the depth of cut after the lock is picked.

With a Lishi 2-in-1 pick, you can not only pick the lock, but also read the depth of the cut (the positions of the tumblers) in the picked position. Then you can use that information to help you impression a key for the lock. While picking the lock, the lifter and pointer help you to correctly position the tool to pick individual tumblers. After the lock has been picked, the lifter and pointer allow you to quickly read the depth of each tumbler in the lock.

That’s all about today’s video, and please stay tuned, and I’ll post other Mr. Li’s training videos here in the blog, so that you will learn how a specified Lishi tool is used, and how to cut a temp key. Thank you!

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