How to Use Tension Wrenches Like a Professional Locksmith

When it comes to lock picking, one of the essential tools every beginner locksmith needs is the tension wrench. It’s a versatile and critical tool that, when used correctly, will make a significant difference in your ability to manipulate pin tumbler locks effectively. For novices just starting in the craft of lock picking, understanding how to use tension wrenches like a professional locksmith can drastically improve your skills, precision, and overall success.
 

 

What is a Tension Wrench?

A tension wrench is a simple but powerful tool designed to apply torque to a lock’s cylinder. It plays a fundamental role in the lock picking process, particularly with pin tumbler locks, which are the most common type found in home doors, safes, and other locks. The tension wrench is used to maintain slight rotational pressure on the lock while the lock pick is used to manipulate the pins inside the lock. Without the correct tension, the pins won’t stay set, making the lock picking process incredibly difficult.

 

In essence, a tension wrench holds the lock mechanism in place, while the Lockpick Tool manipulates the pins inside the cylinder. The balance between these two actions is what allows a professional locksmith to open a pin tumbler lock with precision.

 

Understanding the Function of a Tension Wrench

At its core, the tension wrench is designed to apply rotational force to the lock's cylinder. When using it, the locksmith will insert the tension wrench into the lower part of the keyway and turn it slightly in the direction the key would normally rotate. This light torque is essential for setting the pins in the lock.

 

When a locksmith uses a tension wrench, they are essentially keeping the pins in their set positions. Once a pin is correctly lifted to the shear line, the pressure from the tension wrench ensures that the pin doesn’t fall back into its original position. If too much torque is applied, it can cause the pins to bind or become stuck. Conversely, too little pressure will cause the pins to fall back into place as the pick is moved away from the pin. Finding the right balance is key to effective lock picking.

 

How to Use a Tension Wrench Like a Professional Locksmith

 

1.Selecting the Right Tension Wrench

There is no one-size-fits-all when it comes to tension wrenches. As you start learning how to pick locks, you’ll encounter a variety of tension wrenches, each suited for different types of locks. Some are designed for standard pin tumbler locks, while others are made for more complex locks like wafer locks or disc detainer locks. The tension wrench should be selected based on the lock you are working with and the amount of torque required.

 

Common tension wrenches come in different thicknesses and shapes. For beginners, it's best to start with a medium-thickness Tension Wrench, as it provides a good balance of control and torque.

 

 

2.Inserting the Tension Wrench

Insert the tension wrench into the bottom of the lock’s keyway. This placement will allow you to apply rotational pressure in the direction the key would turn. Be sure to use a gentle, consistent pressure when applying torque—this will keep the pins in place as you pick them.

 

3.Finding the Binding Pin

Once the tension wrench is in place, begin using your lock pick to move the pins inside the lock. As you manipulate the pins, you’ll feel resistance at certain points. This resistance indicates a binding pin—essentially a pin that has been lifted to the shear line and is ready to be set. Apply very light torque to the tension wrench, and focus on lifting the binding pin with the pick.

 

4.Set the Pins

With gentle, controlled movements, lift the binding pin to the shear line. You will feel the pin “set” when it no longer binds. When a pin sets, the pressure from the tension wrench prevents it from dropping back into place. Continue working your way through the lock, setting each pin one at a time, while maintaining a consistent light torque.

 

5.Unlocking the Lock

Once all the pins have been set and are at the shear line, you’ll feel the lock cylinder begin to rotate with ease. Continue applying light torque, and the lock should open with minimal effort. If the lock doesn’t open, it may indicate that one or more pins are not correctly set, requiring you to repeat the process and adjust the pressure on the tension wrench.

 

The Importance of Torque Control

A professional locksmith understands the importance of precise torque control. Too much force can cause the pins to become misaligned, making it impossible to pick the lock. Conversely, too little pressure means the pins will not stay in place, and the lock won’t open. A locksmith uses their experience to “feel” the amount of torque required for each lock, ensuring that the pins are held securely while they work on setting each one.

 

As you gain more experience, you’ll develop a sense of the ideal pressure needed for different locks. Some locks require very little torque, while others may need a more significant amount of force to set the pins.

 

 

Conclusion

Tension wrenches are indispensable tools in any locksmith’s arsenal. By using the correct amount of torque and applying consistent pressure, a locksmith can ensure that the pins in a pin tumbler lock stay in place while the lock pick manipulates them. Mastering the use of a tension wrench is essential for anyone looking to become a professional locksmith. With practice, you’ll be able to pick locks with precision and efficiency, unlocking a world of possibilities in the art of lock picking. Whether you’re a hobbyist or aiming to pursue locksmithing as a profession, the Tension Tool is your gateway to success in the craft.