This 5 slot cutaway lock-case shows all chambers in the cylinder

Slots extends down to display bottom and top pins in all chambers

Enables you to view how incorrect keys create positive and negative locking to secure the cylinder

It also shows how the correct key opens the pins to open the lock

This cutaway practice cylinder is a great visual aid for practicing:

• Lock Pinning
• Master Keying
• Shimming
• Picking; and
• How a cylinder operates

The cylinder is valuable aid to understanding the lock and to develop service skills.

A must in any lock-sport collection