Fitting Furniture Keys

Replacing keys for an existing lock is difficult
  • Lock bits, also known as blades, are specifically cut to fit a lock. Depending on the lock mechanism this can be complex.
  • Unfortunately knowing the manufacturer and model number of the lock does not help in locating a key to fit an antique lock.
  • Cutting the bit/blade, to turn the lock mechanism, often requires the skills of a locksmith.

  • Before choosing a key blank:
  • Determine lock-pin diameter This measurement is critical as key-barrel must slide over lock pin.
  • The key-bit must be sized correctly to move the lock-bolt .

  • Profile of key-bit varies according to individual locks.
  • Some locks are easily turned with a simple un-notched blade
  • Other locks require a key bit with one notch to lock or unlock
  • Many locks require a key cut with 2 notches: one notch locks the lock the other notch unlocks the lock
  • Some locks, made with spring-loaded levers, also require 2 notches however they also must be different sizes. This type of key is difficult to reproduce
  • Fitting keys to keyhole covers

    Selecting Keyhole Covers - Escutcheons
    For accurate fit:
    • Measure keyhole height in keyhole cover
    • Measure key-end height, height of key-bit
    • Compare above determined measurements, to interior keyhole measurements, of the desired keyhole cover
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