In order to show the metal texture and solid, hard qualities of hardware tools such as wrenches, screws and drivers, you can use hard light to sidelight or side backlighting. Flat shape of the wrench, should be noted that the use of its flat parts of the reflection, you can play a high angle of the side backlight, and make the light transmission angle and the camera's top angle is basically the same, or slightly lower, so that the handle parts of the undulating texture of the shadow, to enhance the three-dimensional sense.
