You may use door lock tumbler replacement for a variety of purposes.
The possibilities extend beyond simply rekeying your locks with new key tumblers.
Learn about your lock choices and how to lock tumbler replacement will help you achieve your objectives.
What Are Lock Tumblers?
Tumblers sometimes referred to as pins, are the internal components of pin tumbler locks.
These lock components are what allow some keys to operate in the lock while preventing others from doing so.
To comprehend the various approaches to lock tumbler replacement, you must first comprehend what parts of the lock are being replaced and how important they are to the lock’s functionality.
There are many pin stacks within a simple pin tumbler lock (most often five).
There are at least three sections to each pin stack:
Stacks of Pins and Springs
A pin stack consists of at least two pins and one spring.
The spring applies pressure to the stack, allowing pins to reset smoothly after being lifted by a key.
Springs may be made of various metals to provide varying levels of pressure, but they are typically common in most locks.
The key pins are the tumblers/pins that the key comes into contact with.
(Though they’re called pins, the term “tumbler” is also used interchangeably.)
The key pins are cut to various heights to match the various groove depths on a key.
It will not open the lock unless the key is made with the sizes of the key pins in mind.
Instead of a regular lock tumbler replacement, you can easily use key tumbler replacement (more often referred to as “rekeying”) to get a lock to open with a different key.
Between the main pins and the springs are the driver pins.
They’re a normal height and don’t come into contact with the key when it’s actuating the lock.
As a result, they seldom wear out and aren’t required for things like key tumbler replacement.
When replacing lock tumblers, driver pins are often replaced with pins of a different shape (though not a different height).
How Do Lock Tumblers Open a Lock?
To understand the difference between lock tumbler replacement and key tumbler replacement, you must first understand how these components work together to make a lock work.
The proper key must raise the pin stack (tumbler stack) to a certain height to open the lock.
This is the reason why the key tumbler (key pin) and the key must be made specifically for each other.
A shallow groove on a key must align with a longer key pin, and a short pin must align with a higher groove in order for all pins to rest at the same height.
The explanation for this uniform height is due to the pin tumbler lock’s construction.
A pin tumbler lock is made up of two parts:
The key is inserted into the plug, which is a part of the lock.
When the lock is open, it rotates and retains the keyway.
This movement pushes a stationary tailpiece or cam on the plug’s back, which actuates a bolt, lock, or another mechanism.
The plug will not turn, and the lock will not open without the correct key.
This is the plug’s housing, and when the correct key is used to open the lock, it remains stationary.
The bible’s springs drive the pin stack into the socket, which binds the plug to the bible.
The shear line is the point where these two pieces intersect.
The difference between the plug and the bible is what causes the plug to spin inside the bible.
The lock is open if it rotates in that direction.
However, nothing can be blocking the shear line in order for the rotation to take place.
The key must raise the pin stack so that the driver pin and spring are in the bible and the key pins are in the socket.
The driver pins will catch on the shear line and tie the lock if they are underset (the key groove is too deep).
The main pins will connect at the shear line if the driver pins are overset (the key groove is too shallow).
Types of Lock Tumbler Replacement
The most important reason to replace your lock tumblers is to increase your safety.
Changing out the normal driver pins for more exotic tumblers is a popular way to replace the lock tumblers.
Protection pins are the more popular name for these exotic tumblers.
The pin in pin protection pins provides a clear example and description of this type of thing.
The basic idea behind re-pinning as a lock tumbler replacement method is that when someone tries to open the lock covertly, the driver pins will get caught up on the shear line.
This form of lock tumbler replacement makes lock picking more difficult and prevents lock bumping.
The driver pin is the most likely to be re-pinned since it is the first and possibly only pin to move through the shear line.
You can opt to replace the key pins with security pins in the most severe cases of lock tumbler replacement.
It is a fact that the key pins must correspond to the key used in the lock, which is something to keep in mind.
If you aren’t aware of pin height, replacing the key tumbler isn’t an option for re-pinning.
Rekeying a lock is the most common form of lock tumbler replacement.
This procedure is often referred to as key tumbler replacement.
This is due to the fact that you are removing the key pins (key tumblers).
This lock tumbler replacement is designed to enable an existing lock to be opened with a different key.
Key tumbler replacement is often used to make several locks operate with a single key.
This lock tumbler replacement reduces the number of keys a facility manager or homeowner has to bring around with them in the case of high-security padlocks and certain door locks.
The cost of rekeying a lock varies greatly depending on who replaces the key tumblers.
All you’ll need is a key and the corresponding set of key pins to complete this operation.
If you want to rekey your locks instead of changing them, it’s a lot easier to do it yourself than it is to key a collection of locks the same way.
You’ll definitely need a key decoder and even a pinning tray to replace standardized key tumblers because you’ll need to know the exact size of your pins.
The key decoder will tell you how deep your keys’ grooves are, and the whole pinning tray will likely tell you which pins to use and how many you’ll need.
Having a master key system is the final method of lock tumbler replacement.
For this lock tumbler replacement, the driver pins will remain the same, but you will be replacing some key tumblers.
The key pin will be replaced, and master wafers will be added.
Between the driver and the key pin is a master wafer, which is an extra tumbler.
The presence of three pins in your stack of lock tumblers creates the possibility of a second shear line.
In a literal sense, no. Since there is only one distance between the plug and the lock’s bible, the pin stacks will now line up in that gap in two separate ways.
You can easily have two keys open one lock since each pin stack can be set in two different ways.
One key raises the tumblers in the lock to one height, while another key lowers them to a different height.
This exposed your lock to a number of flaws, including increased decoding ease and increased susceptibility to raking and single pin picking.
The benefit of master keying is that you can use this lock tumbler replacement on various locks in various locations.
You’re rekeying locks so that they only unlock with one key, but you’re still limiting access to those people who will only be able to open one door.
The Bottom Line
Replacement of door lock tumblers is one of the most cost-effective ways to save money on new locks while still increasing protection and layering access control.
To avoid damaging your locks, it is always a good idea to get this work done by a licensed locksmith.
If treated incorrectly, any form of lock tumbler replacement will result in the need for brand new locks.
Take care of your locks and safe, and if you ever need assistance, contact a locksmith.