This precision tool operates on mechanical feedback analysis principles. When tension is applied, the pins bind at the shear line between the plug and housing, enabling accurate measurement and manipulation.

• For mechanical hotel locks, specialized Lishi-style tools enable authorized staff to decode locks when guest keys are lost or to audit lock functionality without compromising mechanical security.

• Transmits clear, real-time tactile feedback from lock pins directly to the user's hand while providing visual confirmation via the moving pointer on the external scale, creating a dual-sensory feedback system.

• For wafer locks, use flat picks for optimal results
• Understand the differences between pin tumbler and wafer lock mechanisms
• Use a pick gun with controlled trigger pulls
• Adjust tension based on feedback from the lock
• Practice on various lock brands to gain experience