The BBK 800FN is a quality made R410A flaring tool suitable for flaring 1/4", 5/16", 3/8", 1/2", 5/8", & 3/4" O.D tubing.
The 800FN has a built in clutch mechanism to prevent over-processing of tube to create the ideal flare.
R410A flares require a deeper flaring compared to R22 flares, due to higher operating pressures. The 800FN provides a deep flare suitable for all flare style systems inluding R410A.