RCT-DS040 Large Socket Driver 4.0mm

Fits all 4mm applications and the Walkera 4G3, 4G6, 4G6S, 4#6, 4#6Bell, 4F200, 4F180, V120D01, V120D02, CB180, CB180Z, UFLYS, V200D01, V200D02, Novus 125 CP, Novus 125 FP and Novus CP main blade holding nut.