Adjustable screw manually, with tensor and auto stop (click) This type of screw allows to relax the blades without losing the adjustment of average-moon.

Adjustable screw manually. It allows relax the blades simply with the fingers.

Adjustable flat screw, with plastic rigid. Classic divides screw that allows to relax the blades smoothly (thanks to ist plastic ring) with a screwdriver without losing the graze of the average-moon.

Adjustable flat screw. Classic divides screw that allows to relax the blades smoothly with a screwdriver without losing the graze of the average-moon.