Trenching machines come in various sizes depending on the size of the trench being drilled. A rock-wheel has a toothed metal wheel used to grind and remove material. A track trencher with a chain is another type of trenching machine working similar to a chain saw. These trenchers are great narrow or deep trenches and are used for telecommunication and utility.
A micro trencher is a small rock-wheel that is used to cut a smaller trenches for fiber optic cable and is capable of cutting through solid stone. They are also for cutting into pavement to access pipes or utilities underneath.