Futaba / Savox 3" to 4.5" USA made double lock off set Servo arms tapped for 4-40 bolts.
Made in the USA by SWB
SWB’s the original aluminum Double-Loc Servo Arm
These arms are not only designed to clamp around the output shaft,
but they also make up for any inconsistencies in the output shaft sizes.
Half arms are measured from the servo screw hole to the outside hole.
Full arms are measured from the servo screw hole to the outside hole, 2X
Example” 1-1/4 Full arms are 2-1/2” from outside hole to outside hole.
1" & 1-1/4" Half arms .11
1-1/2" & 2' Half arms .25 (1/4")
1-1/4", 1-1/2" and 2.25 Full arms .25 (1/4")
Offset arms are designed to be used with a rudder horn of that length and crossing the wires
Example: 3” offset arm is to be used with a 3” rudder horn
these are great servo arms,indestructible
They work great for rudder control
Excellent arm great finish, extremely durable