This Truth Hardware Face Mount Casement Window Operator has a 13-1/2″ inch single arm which provides arm movement for 90 degrees of window opening. This window operator can be used with 4-Bar Hinges and has two sets of screw holes; 3-7/8 and 4-3/4 inch (98.4 and 120.6 millimeter). Truth Hardware’s face mount casement window operator is used by several window manufacturers.
Crank handle sold separately.