After using the scissors for some time the screw unties, deteriorating the cutting efficiency and precision.
The Ring Lock System^® developed by premax^® resolves the problem and keeps a constant blades setting.

The Ring Lock System^® developed by premax^® is made of a stainless steel bearing, an aluminium bearing and a Teflon ring assembled with a special high precision machine used in the watch industry.
This allows a precise setting of the blades, eliminates the blades "twist" and guarantees a uniform quality of the production lot.
The Ring Lock System^® improves the movement of the blade which, rotating around the Teflon ring - auto lubricating and non-deforming material - keeps the blades set stable and guaranteed forever.

With the Ring Lock System^® developed by premax^®, the circumference around which the blade rotates is 60% bigger than on the traditional scissors, this is the key to a smoother and more precise cut and a longer edge's life.