This DX210W-5 Excavator features a Two-Piece Articulated Boom. What's that? Instead of the Main Boom measuring 18' 4", it's separated into a 12' 7" & a 6' 4" section. This allows the operator to work closer to the machine or at non-conventional angles. Changing the bend of the boom to decrease it's working height, which is ideal for digging under a bridge or in a building.
It also improves visibility during transportation, when retracted driving down the road.