The 856 series features lift lever operation. It differs from the 859 series which has split spindle nightlatch operation. This lock is a standard length version of the 4 roller Type 1 lock.
- Undo the screw in the side of the lock case adjacent to the latch. Remove the latch, reverse, reinsert and repace the screw.
- Overall length – 2170mm
- Distance between outer rollers – 1510mm
- Distance between inner rollers – 699mm
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