10pcs Fiber Optic Connector Fast Connector Adapter Single Mode for CATV FTTH Network (SC/APC)

Do these work with 9/125 Micron fiber ?

What tools are required to install these?

What is the "v-slot switch"? the instruction sheet says "make sure that the v-slot switch is at the end." does anyone know what that means?

Will these work with 62.6/125 mm fiber?