Photo Credit: Alex Mead
This is a powerful tool known as a concrete chainsaw. Working on the same principle as a wood chainsaw it is very capable of cutting through concrete, asphalt, and rock materials. This particular unit is powered by hydraulic fluid being pumped through the hoses coming out of the handle on the right side of the unit. Saw chains for this unit are many times laced with diamond grit cutting heads and are very effective at cutting through tough materials. Concrete chainsaws are particularly good at making square cuts, because unlike circular concrete saws they don’t have to cut past the edge of the hole to complete the cut.