Slide-Co 173553 Andersen Tee Crank Handle, 3/8 in. Bore, Diecast Construction, Stone This casement operator tee handle replaces swivel style cranks that interfere with window blinds. It is designed for use on older Andersen windows Fits 3/8 in. Andersen casement operator splines Finished in a stone-colored paint Constructed of zinc diecast