H3514 Finish: Aluminum Features: -Casement window operator. -Material: Mixed. -Worm gear driving mechanism with steel arm. -Square type with 0.38" diameter spindle. -Used on steel framed windows.. Specifications: -Handing: Left. -Length: 9". -Dimensions: 13.25-13.3" H x 1.38-3.88" W x 1.38-3.88" D. h3514 Installation h3520 Installation h3710 Installation h3711 Installation