Helps in stretching the wire that holds the honeycomb on the frame. Use it after you have applied the wire on the frame if it seems loose. Ideal for frames that we have removed the old honeycombs from and the wires need stretching again.
Just press the wire inside the two wheels of the tool and drag it along all the way. This will form ripples on the wire and stretch it. You don’t have too stretch it too much.
TIP: The wire is stretched enough if you can hear the sound of the guitar when tapping it with your finger.