Commercial Heavy Duty Security Mortise Lock Handle Set

• Latchbolt retracted by knob/lever from either side unless outside is locked by 20° rotation of thumbturn.

• Deadbolt thrown or retracted by 90° rotation of thumbturn.

• When locked, key outside or knob/lever inside retracts both Deadbolt and Latchbolt simultaneously.

• Outside knob/lever remains locked until thumbturn is restored to vertical position.

• Throwing Deadbolt locks outside knob/lever.

• Auxiliary latch deadlocks Latchbolt when door is closed.