Stanley surform planer files stanley 5 21 102 this moulded bodied flat file surform is for use on all types of wood aluminium plastics copper and laminatesit has a lightweight plastic moulded body with a thumb screw for quick blade releasethe slight curve on the 140mm 5 12in blade is for increased stock removal and it can be used on push or pull strokeoverall length 335mm 13in stanley 5 21 102 surform moulded body surform flat file 335mm