https://www.repairmywindowsand....doors.co.uk/woodley-
Choosing a Double Glazed Window Handle The proper double-glazed window handle will keep your windows secure and energy efficient. You can replace the handles or install new ones to your windows at home. There are a variety of handles. One of them is the cockspur handle. It has a spur that is locked on to an elongated striker. In-line UPVC handles are straight and can be turned left or right. Cranked handles come in both left and right variants. These handles are used with multipoint locks to provide security