MASTER KEY
SYSTEM
A
master key (MK) system allows the owner of the building to have one key
that opens all the locks while each lock can be operated by its own
individual key.
Any
two locks can be master keyed. MK
systems are in use in residential houses as well as

This
is achieved by creating multiple shear lines in the lock such that several
keys will open that lock.
Strict
control is kept of the keys issued on the system.
A good MK system will ensure that you do not have cross keys.
These are keys that are in use as a part of the system (such
as a washroom key) that
open an unintended lock (such
as a tenant’s lock).
Key
control is important as is seen in the front door of apartment buildings.
When an uncontrolled key is used in this application two problems
occur. First, tenants
make copies of the front door key for friends, relatives, neighbours, etc.
Soon there are thousands of keys that open the front door of the
building.
Second,
when a tenant makes a copy of a key from a copy instead of from an
original, the new key does not work smoothly.
A lock uses a high tolerance to maintain security.
Otherwise, anyone could pick a low tolerance lock with a paper clip.
The
rough use of the twice copied key causes excess wear in the lock cylinder.
The pins get rounded down, the keyway gets worn away and soon the
tolerance of the lock is compromised.
Several different key codes will work.
SSI
recommends Mul-T-Lock high security cylinders for the front door of
apartment buildings. Each key
is cut by code – each key is an original not a copy.
And copies cannot be made by tenants.
Giving you control of your front door.
SSI
also recommends electronic
access control for the front door of buildings.
In this case, a Mul-T-Lock cylinder works well but tenants are not
given keys. Credentials such
as a card or a tag are given to the tenants.
This
credential can be tracked by the management, can be timed to only work
certain hours or days, can permit the use of an alarm on the door for
forced entry and other heinous acts.
The goal of the locksmith is to give you fewer keys in your pocket while getting you into the doors you need to go.
Image the possibility of ONE KEY.

Master
Keying Options

All
locks operated with different keys.
Each key is designed such that it will not open any other lock.
All
locks operate on one key.

One
key operates every lock and each lock operates with its own individual
key as well. Two
keys will open each lock on the bottom level.

Again one key operates every lock. There are also sub-masters that operate the locks below them on the system. The bottom level keys will not operate a lock on a higher level.
Only
from Mul-T-Lock

Each
Mul-T-Lock key is double sided. This
means that each side can be cut to a different code – two keys in one!
Most Mul-T-Lock keys are cut with the same code on both sides for
ease of use.
Also only from Mul-T-Lock
3-in-1 System

|
The
3-in-1 Lock from Mul-T-Lock |
|
|
TO
START YOUR 3-IN-1 LOCK:
WHEN
YOU NEED TO CHANGE THE LOCK:
IF
YOU NEED TO CHANGE THE LOCK AGAIN:
Need
to Change Your Lock Again? |
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