Nemef NF3 - Revision history

Sandplum: clean-up, spec

2022-12-25T22:35:01Z

clean-up, spec

← Older revision		Revision as of 22:35, 25 December 2022
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	\| lock_design = [[Pin_tumbler\|Pin-tumbler]]		\| lock_design = [[Pin_tumbler\|Pin-tumbler]]
	\| patent =		\| patent =
	\| years_produced =		\| years_produced =
			\| ratings = SKG***
	\| related =		\| related =
	\| spec_on =		\| spec_on = true
	\| spec_comptype =		\| spec_comptype = [[Pin_tumbler\|Pin-tumbler]]
	\| spec_comp =		\| spec_comp = 6
	}}		}}

	The '''NF3''' is a [[pin-tumbler]] lock made by [[Nemef]]. Compared to the '''NF2''', it contains more anti-drill protection elements ~~(SKG3)~~, unauthorized key copying prevention in the form of the security card and finally there is a "hidden warding" element.		The '''NF3''' '''(or 132/9)''' is an SKG***-rated [[Pin_tumbler \|pin-tumbler]] lock made by [[Nemef]]. Compared to the '''[[Nemef NF2 \|NF2]]''', it contains more anti-drill protection elements, unauthorized key copying prevention in the form of the security card, and finally there is a "hidden warding" element.

	__TOC__		__TOC__
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	== Principles of operation ==		== Principles of operation ==

	:''See also: [[~~Pin-tumbler~~#~~Principles_of_Operation~~\|Pin-~~Tumbler~~ (Principles of ~~Operation~~)]]''		:''See also: [[Pin_tumbler#Principles_of_operation\|Pin-tumbler (Principles of operation)]]''

	The lock contains six pin stacks. Its most distinctive feature is the use of multiple diameter keypins, which together with a special warding causes the key pin tips at rest aren't at the same level (sometimes referred to as "shadow drilling"). These features provide additional resistance to [[key bumping]] attacks. The pin stacks alternate between serrated and spooled drivers, but due to the way the key pins rest in the chambers, the spools effectively engage only when paired with three shortest key pins. All of the drivers have slightly tapered tips~~, which gives this lock its bad reputation among the locksport community~~.		The lock contains six pin stacks. Its most distinctive feature is the use of multiple diameter keypins, which together with a special warding, causes the key pin tips at rest aren't at the same level (sometimes referred to as "shadow drilling"). These features provide additional resistance to [[key bumping]] attacks. The pin stacks alternate between serrated and spooled drivers, but due to the way the key pins rest in the chambers, the spools effectively engage only when paired with three shortest key pins. All of the drivers have slightly tapered tips.

	The warding is not very restrictive and the keyway itself is not paracentric.		The warding is not very restrictive and the keyway itself is not paracentric.
	There is a passive pin inserted into the core, although there is no corresponding groove in the bible, which means the pin serves only as a "hidden warding". Looking at the left side of the key, there is visible groove, with which the pin interacts. Interestingly enough, there is an anti-drilling element just behind this passive pin.		There is a passive pin inserted into the core, although there is no corresponding groove in the bible, which means the pin serves only as a "hidden warding". Looking at the left side of the key, there is visible groove, with which the pin interacts. Interestingly enough, there is an anti-drilling element just behind this passive pin.


	== Disassembly instructions ==		== Disassembly instructions ==

	To disassemble a double euro cylinder, use of a pinning shoe is the preferred method.		To disassemble a double euro cylinder, use of a pinning shoe is the preferred method.

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	* [[Lockpicking]]		* [[Lockpicking]]
	* [[Decoding]]		* [[Decoding]]
	* [[Key bumping]] ~~(It is resistant to but theoretically possible to bump this lock)~~		* [[Key bumping]]
	* [[Impressioning]]		* [[Impressioning]]

	== Gallery ==		== Gallery ==
	<div align="center"><gallery>		<div align="center"><gallery>
	File:Nemef NF3 key least.png\|Nemef NF3 ~~key~~.		File:Nemef NF3 key least.png\|Nemef NF3 keys.
	File:Nemef NF3 warding least.png\|Nemef NF3 keyway detail.		File:Nemef NF3 warding least.png\|Nemef NF3 keyway detail.
	File:Nemef NF3 warding1 least.png\|Nemef NF3 keyway with the "hidden warding" antidrill element in focus.		File:Nemef NF3 warding1 least.png\|Nemef NF3 keyway with the "hidden warding" antidrill element in focus.
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	* [https://www.youtube.com/watch?v=0CmCtI7-CWc&t=392s Artichoke2000's Nemef NF2 analysis]		* [https://www.youtube.com/watch?v=0CmCtI7-CWc&t=392s Artichoke2000's Nemef NF2 analysis]

			[[Category:Lock models]]
	[[Category:Nemef]]		[[Category:Nemef]]
	~~[[Category:Lock models]]~~
	[[Category:Pin-tumbler locks]]		[[Category:Pin-tumbler locks]]
			[[Category:SKG locks]]

Least at 20:38, 7 June 2022

2022-06-07T20:38:34Z

← Older revision		Revision as of 20:38, 7 June 2022
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	* [[Nemef]]		* [[Nemef]]
	* [https://www.nemef.nl/nl/products/voordeuren/veiligheidscilinders/nemef-veiligheidscilinder-132-9-(nf3)]		* [https://www.nemef.nl/nl/products/voordeuren/veiligheidscilinders/nemef-veiligheidscilinder-132-9-(nf3) Nemef NF3 product page]
	* [https://www.youtube.com/watch?v=0CmCtI7-CWc&t=392s Artichoke2000's Nemef NF2 analysis]		* [https://www.youtube.com/watch?v=0CmCtI7-CWc&t=392s Artichoke2000's Nemef NF2 analysis]

Least: Initial version of NF3 page created.

2022-06-07T20:34:04Z

Initial version of NF3 page created.

New page

=Nemef NF3=

{{Lock model
| name = Nemef NF3
| Img = File:Nemef NF3 least.png
| maker = [[Nemef]]
| lock_type = [[Cylinder]]
| lock_design = [[Pin_tumbler|Pin-tumbler]]
| patent =
| years_produced =
| related =
| spec_on =
| spec_comptype =
| spec_comp =
}}

The '''NF3''' is a [[pin-tumbler]] lock made by [[Nemef]]. Compared to the '''NF2''', it contains more anti-drill protection elements (SKG3), unauthorized key copying prevention in the form of the security card and finally there is a "hidden warding" element.

__TOC__
<br clear="all">

== Principles of operation ==

:''See also: [[Pin-tumbler#Principles_of_Operation|Pin-Tumbler (Principles of Operation)]]''

The lock contains six pin stacks. Its most distinctive feature is the use of multiple diameter keypins, which together with a special warding causes the key pin tips at rest aren't at the same level (sometimes referred to as "shadow drilling"). These features provide additional resistance to [[key bumping]] attacks. The pin stacks alternate between serrated and spooled drivers, but due to the way the key pins rest in the chambers, the spools effectively engage only when paired with three shortest key pins. All of the drivers have slightly tapered tips, which gives this lock its bad reputation among the locksport community.

The warding is not very restrictive and the keyway itself is not paracentric.
There is a passive pin inserted into the core, although there is no corresponding groove in the bible, which means the pin serves only as a "hidden warding". Looking at the left side of the key, there is visible groove, with which the pin interacts. Interestingly enough, there is an anti-drilling element just behind this passive pin.

== Disassembly instructions ==
To disassemble a double euro cylinder, use of a pinning shoe is the preferred method.

Other possibility is to use a segmented follower, but that requires that both cores are pulled out a bit to allow a cam removal. Then a core should be rotated to approximately 4:30 or 7:30 o'clock position (135 degrees either clockwise or anti-clockwise) to prevent driver entering a gaps for the cam clutch. Then a segmented follower can be used to remove the core.

When assembling the lock, take care to insert the cam clutch oriented correctly (see the notch on the top of the key blade), otherwise it would be impossible to fully insert the key into the lock.

== Vulnerabilities ==

The Nemef NF3 is vulnerable to one or more of the following:

* [[Lockpicking]]
* [[Decoding]]
* [[Key bumping]] (It is resistant to but theoretically possible to bump this lock)
* [[Impressioning]]

== Gallery ==
<div align="center"><gallery>
File:Nemef NF3 key least.png|Nemef NF3 key.
File:Nemef NF3 warding least.png|Nemef NF3 keyway detail.
File:Nemef NF3 warding1 least.png|Nemef NF3 keyway with the "hidden warding" antidrill element in focus.
File:Nemef NF3 pins least.png|Nemef NF3 pins detail.
File:Nemef NF3 core bottom least.png|Nemef NF3's core detail.
File:Nemef NF3 core left least.png|Nemef NF3's core detail.
File:Nemef NF3 core top least.png|Nemef NF3's core detail.
File:Nemef NF3 bible side least.png|Nemef NF3's side view.
File:Nemef NF3 bible bottom least.png|Nemef NF3's bottom of the bible showing the drill protection.
File:Nemef NF3 card least.png|Nemef NF3's security card.
</gallery></div>

== References ==
<references />

== See also ==

* [[Nemef]]
* [https://www.nemef.nl/nl/products/voordeuren/veiligheidscilinders/nemef-veiligheidscilinder-132-9-(nf3)]
* [https://www.youtube.com/watch?v=0CmCtI7-CWc&t=392s Artichoke2000's Nemef NF2 analysis]

[[Category:Nemef]]
[[Category:Lock models]]
[[Category:Pin-tumbler locks]]