FAB 3***/4****: Difference between revisions

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| name = FAB 3*** Profi/4****
| name = FAB 3*** Profi/4****
| Img = File:FAB4xxxx_least.png
| Img = File:FAB4xxxx_least.png
| maker = [[Fab]]
| maker = [[Fab|FAB]]
| lock_type = [[Cylinder]]
| lock_type = [[Cylinder]]
| lock_design = [[Pin_tumbler|Pin-tumbler]]
| lock_design = [[Pin_tumbler|Pin-tumbler]]
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}}
}}


'''FAB 3*** Profi''' and '''FAB 4****''' are two new locks from [[Fab|FAB]]; FAB 3*** Profi belongs to a resistance class 3, FAB 4**** belongs to resistance class 4. These locks differ quite significantly from the previous FAB's products - both of them are six pin locks, they have a new key shoulder and shoulder stop, new pins, different cam clutch and more...
'''FAB 3*** Profi''' and '''FAB 4****''' are two [[pin-tumbler]] locks from [[Fab|FAB]]. FAB 3*** Profi belongs to a resistance class 3, FAB 4**** belongs to resistance class 4. These locks differ significantly from previous FAB products; both are six pin locks but they have new designs for key shoulder, shoulder stop, pins, cam clutch, and other components.


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== Description ==
== Principles of operation ==
Both locks are quite similar - FAB 4**** just seem to be using different keyway, core contains six more antidrill inserts and by default it contains a cam clutch allowing unlocking even when a key is inserted from the other side.
:''See also: [[Pin-tumbler#Principles_of_Operation|Pin-Tumbler (Principles of Operation)]]''
Both locks are have six pin chambers, equipped with a new style pins - both keypins and drivers are thinner than in previous generations of FAB locks, keypins have even slimmer tops (no reason for that mentioned in patents or documentation). Driver pins seem to be reworked too and the thinner spools don't cause much counter-rotation, when a false set is achieved, adding to the improved picking resistance. Also springs are different and quite a bit stronger than in previous locks.


Pinning "structure" is also different compared to older top models - there is only sigle RBC pin, two spools and the rest are standard drivers (one brass, two steel ones in the back). The behavior of the lock changed too - the standard driver behavior is similar to the old bevelled/tapered ones FAB used long ago, which combined with the spools and the RBC improve the picking resistance further.
Both locks are similar, but the FAB 4**** uses a different keyway, contains six more anti-drilling inserts, and by default contains a cam clutch allowing unlocking even when a key is inserted from the other side.
Both locks have six pin chambers, equipped with a new style pins - both key pins and drivers are thinner than in previous generations of FAB locks. Key pins have even slimmer tops. Driver pins are different than previous iterations from FAB and the thinner spools don't cause as much counter-rotation when a false set is achieved, adding to the improved picking resistance. The springs used in these models are stronger than in prior FAB models.
 
Pinning "structure" is also different compared to older FAB models - there is only one RBC pin, two spools and the rest are standard drivers (one brass, two steel ones in the back). The standard driver pin behavior is similar to the old beveled/tapered ones FAB used long time ago, which combined with the spools and the RBC pin improves the picking resistance further.


Key is also very different, and it contains interesting feature (patented) - the key shoulder has a shape that interfaces with a groove in the core. This shape can be used for master-keying purposes, as detailed in the EP3219882B1 patent.
Key is also very different, and it contains interesting feature (patented) - the key shoulder has a shape that interfaces with a groove in the core. This shape can be used for master-keying purposes, as detailed in the EP3219882B1 patent.


Also the core clutch used in FAB 3*** Profi is completely different - it has no moveable parts and uses a groove milled in the core to function.
The core clutch used in FAB 3*** Profi is completely different - it has no moveable parts and uses a groove milled in the back of the core to function.
 
== Dissassembly instructions ==


== Disassembly instructions ==
The core has two groves for the cam clutch at 3 and 9'o clock positions, that would allow driver to jump out before the follower would hold it. The anti-drill insert chambers of 4**** are wide enough to catch a driver, so a core rotation of more than approximately 100 degrees to either side should be safe. Pinning shoe can be handy, although you have to count with the stronger springs and smaller pin diameter. Segmented follower can be used for the double euro format too.


== Vulnerabilities ==
== Vulnerabilities ==
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* [[Lockpicking]]
* [[Lockpicking]]
* [[Decoding]]
* [[Decoding]]
* [[Key bumping]] - when sliders and RBC pin is worked around
* [[Key bumping]] - when RBC pin is worked around
* [[Impressioning]]
* [[Impressioning]]


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== See also ==
== See also ==


* [[Fab]]
* [[Fab|FAB]]
* [https://www.fab.cz/cs/site/fabcz/produkty/cylindricke-vlozky/fab-3-profi/ FAB 3*** Profi product page]
* [https://www.fab.cz/cs/site/fabcz/produkty/cylindricke-vlozky/fab-3-profi/ FAB 3*** Profi product page]
* [https://www.fab.cz/cs/site/fabcz/produkty/cylindricke-vlozky/fab-4/ FAB 4**** product page]
* [https://www.fab.cz/cs/site/fabcz/produkty/cylindricke-vlozky/fab-4/ FAB 4**** product page]

Latest revision as of 21:19, 24 March 2022

FAB 3*** Profi and 4****

FAB 3*** Profi/4****
FAB4xxxx least.png
Name FAB 3*** Profi/4****
Manufacturer FAB
Lock Type Cylinder
Lock Design Pin-tumbler
Year(s) Produced 2021 -
Patent EP3219882B1, EP3306017B1


FAB 3*** Profi and FAB 4**** are two pin-tumbler locks from FAB. FAB 3*** Profi belongs to a resistance class 3, FAB 4**** belongs to resistance class 4. These locks differ significantly from previous FAB products; both are six pin locks but they have new designs for key shoulder, shoulder stop, pins, cam clutch, and other components.


Principles of operation

See also: Pin-Tumbler (Principles of Operation)

Both locks are similar, but the FAB 4**** uses a different keyway, contains six more anti-drilling inserts, and by default contains a cam clutch allowing unlocking even when a key is inserted from the other side. Both locks have six pin chambers, equipped with a new style pins - both key pins and drivers are thinner than in previous generations of FAB locks. Key pins have even slimmer tops. Driver pins are different than previous iterations from FAB and the thinner spools don't cause as much counter-rotation when a false set is achieved, adding to the improved picking resistance. The springs used in these models are stronger than in prior FAB models.

Pinning "structure" is also different compared to older FAB models - there is only one RBC pin, two spools and the rest are standard drivers (one brass, two steel ones in the back). The standard driver pin behavior is similar to the old beveled/tapered ones FAB used long time ago, which combined with the spools and the RBC pin improves the picking resistance further.

Key is also very different, and it contains interesting feature (patented) - the key shoulder has a shape that interfaces with a groove in the core. This shape can be used for master-keying purposes, as detailed in the EP3219882B1 patent.

The core clutch used in FAB 3*** Profi is completely different - it has no moveable parts and uses a groove milled in the back of the core to function.

Disassembly instructions

The core has two groves for the cam clutch at 3 and 9'o clock positions, that would allow driver to jump out before the follower would hold it. The anti-drill insert chambers of 4**** are wide enough to catch a driver, so a core rotation of more than approximately 100 degrees to either side should be safe. Pinning shoe can be handy, although you have to count with the stronger springs and smaller pin diameter. Segmented follower can be used for the double euro format too.

Vulnerabilities

The FAB 3*** Profi/4**** are vulnerable to one or more of the following:

Gallery

References


See also