Do the sections rub against each other, metal to metal, when the telescoping mast is being extended or contracted?
No, there is not metal to metal contact. The tubing slides on machined plastic rings which ensure a smooth extension and a long life. 10. Why are the keyways an important feature? All mast sections are fully keyed. The keyways ensure that the sections do not rotate one within each other. This becomes very important for video and when taking precise measurements. It reduces any extra movement that could be caused by the mast assembly. 11. What is a fully self-locking mast? The features of a self-locking mast are: a) mast sections self-lock automatically during extension and contraction when the up/down buttons or crank handle is released. You do not have to manually lock each section as it extends. All LUKSA sections extend simultaneously. b) the internal keyways keep the sections locked vertically at all times to prevent any rotation of tube within tube..
