As for the professional locksmiths, they will not be so professional unless getting many practices. Also, some professional trainers play important role during the process. Among various professional tools, the lock is one of the main practical item. Actually, I wanna share you one product of Cutaway Inside View Practice Lock, which was designed into transparent shape and it is easier and simpler for your learning of how the lock works.
According to the pictures, you can see that it was designed into open chambers on all the moving parts, which is helpful that allows you to see clearly how all the parts work of the lock when you insert a key. Most important, you also can see the pins moving up and down when the key slides into and out of the lock. Account for this Professional Instruments was made by high quality metal material and with a compact design, so when the key insert, it can in perfect smooth working condition with no loose parts or pins.
The video as follow shows you another way when you take it to practice. Not only use the key it distributed, but also you can use other unlock tools to complete the operation.
All in all, the Cutaway Inside View Practice Lock is no doubt to be a suitable training tool for the locksmiths who is not similar for the lock working condition. If you are interested in it, you just need to pay $11.88 and you can get it from banggood.com.