I am not sure what WING TOOL you are talking about.

For the wings......

On the foam core, accurately lay out[ul]
[1] Aileron
[2] Balsa wing TE and aileron LE
[3] Servo bay(s)
[4] Servo wire tube location
[5] Hard points
[/ul]

With all of these things laid out on the foam you can measure control rod lengths provided you have the control horn and servo arms that you plan on using. You can choose to install your servo bays now or later. I prefer to do them before the sheeting, but you have to make sure you know where you put things before you sheet the wing. Servo wire tubes should be installed before sheeting.

Once you have the wire tube, wing tube and servo bays in, you are ready to sheet the wing. There are two methods of sheeting the wing. YOu can use the PRESS method or VAC BAG method. The VAC BAG method requires a vacuum system and all the appropriate hardware. The PRESS method simple requires a lot of weight to be placed on top of the shucks. EITHER WAY YOU DO IT, make sure you have a FLAT/STRAIGHT surface to do this on. Even when you VAC BAG, you should apply a little weight to the shucks to make sure the wing is sitting flat on the table top. Once the glue has cured, remove the wing and trim all of the edges. Then install the balsa TE

When you have sheeted the wing and installed the TE, you are ready to cut out the AILERON. Again, lay it out with pencil right on the wood. Draw your lines for the balsa material that replaces the foam that you need to remove. Once you have completed the layout, cut through the wood with an EXACTO knife. When you cut through the wood, you make a path that will guide a hack saw blade to cut through the foam. Start at the ROOT END of the wing and cut out the END of the aileron, then go to the TIP of the wing and start cutting out the most rearward line (the actual LE of the foam aileron). When you have parted the aileron from the wing, go back to the tip and cut the most forward line (the actual TE of the foam wing). At this point, you can install the AILERON ROOT CAP (on the wing only) and the new TE of the wing and LE of the AILERON. With these installed, now install the aileron root cap on the aileron itself. DO NOT BEVEL THE TE OR LE EDGE YET!!!!! Before you do the beveling for the hinge line, you need to PRE-INSTALL your hinges (it is easier to drill and get straight this way). Once the hinges have been pre-installed and you have beveled the hinge lines, you can install your main root cap, and your anti-rotation/wing retainer hard points. I like to wait until just before covering to install the tip caps so I can check lateral balance and install weight in the foam if I have to.

Hope this helps.