CRL White Crank Handle; 3/8" Spline Size for Andersen Windows Fits Andersen Casement or Awning Operators. 3/8" (9.5 mm) Spline Size. Imitation of Genuine Andersen handle, for original, search for Part #B00XNRV6RI. Genuine Andersen white operator cover available in white, search for: 1351330.