Precision tools like tension wrenches are indispensable for locksmith professionals and enthusiasts. These small but mighty tools allow locksmiths to apply controlled pressure within a lock, facilitating the successful manipulation of lock pins. Let’s break down what tension wrenches are and why they’re important in any locksmith’s toolkit.
Understanding the Purpose of Tension Wrenches
A tension wrench’s primary job is to apply slight rotational pressure to a lock cylinder, creating the necessary tension that prevents lock pins from resetting as they’re lifted and ultimately turning the plug once the lock is picked. This tension is crucial for moving pins individually and unlocking the lock.
Locksmiths use tension wrenches in tandem with lock pick tools. While the pick manipulates each pin, the tension wrench holds the cylinder in place. Without this tool, the lock’s pins would simply drop back into position, making it impossible to unlock.
Different Types of Tension Wrenches
Tension wrenches come in various forms to suit different locks and situations. They fit two placements in the keyway: on the side of the keyway that houses the pin stacks (top of the keyway) and on the side of the keyway opposite the pin stacks (bottom of the keyway).
Top-of-the-keyway tension wrenches are inserted on the side of the keyway where the pin stacks are housed. In the U.S., locks are commonly installed with the pins at the top of the plug, thus top-of-the-keyway tension tools are inserted at the top of the keyway. Top-of-the-keyway tension tools allow the keyway to remain open for picking, so they are ideal to use in locks with narrow keyways.
Bottom-of-the-keyway tension wrenches are inserted in the side of the keyway opposite the pin stacks and can be a preferred choice in locks with ample room for picking. Bottom-of-the-keyway tension tools are available in a range of thicknesses and widths to provide optimal fit in a wide range of keyways. They are available in other variations as well, including the following:
- double-ended tension tools with different blade widths or lengths at each end
- twisted tension tools to absorb some of the tension applied
- long tension tools where more leverage can be applied
This range in designs enables locksmiths to adapt to diverse lock mechanisms, making tension wrenches an essential part of any professional toolkit.
Choosing the Right Tension Wrench for the Job
Selecting the appropriate tension wrench depends on the lock type and size and the task’s requirements. Using a wrench that is too thick or too thin for the keyway can make the job more challenging. A tension wrench that is too wide or thick for the keyway cannot be inserted. A tension wrench that is too thin or narrow may not grip the keyway effectively to apply tension.
A well-chosen tension wrench will fit snugly in the keyway without slipping and will allow more precise control of the lock’s pins. High-quality tension wrenches provide locksmiths with greater control and reduce the risk of damage.
Techniques for Using Tension Wrenches Effectively
Mastering tension wrench techniques is crucial for efficient lock-picking. Applying too much tension can make manipulating the pins difficult, and applying too little tension will not effectively set the driver pins. Just enough tension must be applied to set each driver pin when it reaches the shear line.
Experienced locksmiths often develop a “feel” for the correct amount of tension required for each type of lock, leading to more efficient picking.
So, what are tension wrenches and why are they important? They’re the tools that help you control each lock’s unique mechanics, making them essential in a locksmith’s toolkit.
For locksmiths looking to expand their expertise, investing in quality tension wrenches is as important as learning the techniques to wield them effectively. With the right locksmith equipment from SouthOrd, professionals can achieve efficiency and precision in every job.