![[191] Medeco M4 Picked @MichaelMaynard](https://i.ytimg.com/vi/hTNsNKU6Zu4/maxresdefault.jpg)
Uploaded May 2022 | Updated September 2026, 6 hours ago
The Medeco M4 is a truly excellent mechanical lock, and I think a very important one for Assa Abloy's product offerings in North America. Picking it is an interesting experience in that it picks slightly differently every time. Not because the tolerances are super close (like say an MT5+) but because the inherent randomness of the rotational Biaxial pinstates means that you sometimes end up with an easy problem to solve, and sometimes a harder one requiring more steps. Binding order can bounce between top pins / rotational keypins / finger pins and in this instance I got a lucky roll of the dice.
I have a LOT more to say about this lock and will do a proper review video which I'll link here in due course.
incompetech.com/music
The Medeco M4 is a truly excellent mechanical lock, and I think a very important one for Assa Abloy's product offerings in North America. Picking it is an interesting experience in that it picks slightly differently every time. Not because the tolerances are super close (like say an MT5+) but because the inherent randomness of the rotational Biaxial pinstates means that you sometimes end up with an easy problem to solve, and sometimes a harder one requiring more steps. Binding order can bounce between top pins / rotational keypins / finger pins and in this instance I got a lucky roll of the dice.
I have a LOT more to say about this lock and will do a proper review video which I'll link here in due course.
incompetech.com/music
![[191] Medeco M4 Picked](https://i.ytimg.com/vi/hTNsNKU6Zu4/mqdefault.jpg "[191] Medeco M4 Picked
The Medeco M4 is a truly excellent mechanical lock, and I think a very important one for Assa Abloys product offerings in North America. Picking it is an interesting experience in that it picks slightly differently every time. Not because the tolerances are super close (like say an MT5+) but because the inherent randomness of the rotational Biaxial pinstates means that you sometimes end up with an easy problem to solve, and sometimes a harder one requiring more steps. Binding order can bounce between top pins / rotational keypins / finger pins and in this instance I got a lucky roll of the dice.
I have a LOT more to say about this lock and will do a proper review video which Ill link here in due course.
http://incompetech.com/music/")
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This Israeli pin-in-pin lock with active element and trap pin is a very, very good lock.
With thanks to Zbzzn in Israel for sending me this beauty.
www.sls.co.il")
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This one was about six months in the making, but we get it in the end. Part two will be in a few weeks when I have got a key and some pins, Ill review the padlock, then show you how to re-pin it and reassemble all 50 (yes fifty) parts.")
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https://wholesaler.alibaba.com/product-detail/MOK-13-50GE-Best-series-rekeyable_60498971278.html")
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I have no hesitation in saying that this is the worst high security lock I have ever seen. My guess is that Abus really cant believe they allowed this thing to come to market, and are trying to bury it as fast as possible.
With massive thanks to Michael in Germany for letting me pick this lock.")
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This is a lesser-known Assa Twin. Its a very, very good lock.
http://incompetech.com/music/")
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A French domestic market lock owned by Assa Abloy that punches waaaaaaaaaay above its weight.")
