7-1/2" Single Arm. Notched for Wood Application. White X-Drive
Brand: Roto Hardware
Drive: X-Drive has spline protruding from operator
Arm Length: 7-7/16 from housing to middle of arm
Handed: Yes, Right and left handed applications
Colors/Finish:
Bright White (WG2)
Creamy White (WG1)

Note:
The X-Drive and Pro Drive are the same operator that uses a different crank handle.
The Pro drive operators have a hex shaped hole in the operator and the handle with a 5/16" hex stud pushes into operator.
The X-Drive has a 5/16" Hex spline that protrudes from the base and the handle fits onto it.