Lock Cylinder Structure

Lishi 2-in-1 tools are built around the lock cylinder structure, and that structure decides which tool you need. The three families below cover the common automotive designs.

• Flat milling - the most common automotive keyway family
• Internal milling - two-track and four-track internal cuts
• External milling - side and four-track external cuts

Not sure which structure your lock uses? Compare the key or use the tool finder.