The term "digger" is a common word tossed around by industry and construction workers describing excavators. Excavators range in size from minis to much larger 25 ton models used to dig unfathomable sized holes in the Earth. Sizing further varies on the size of the boom. Like a shovel, the boom digs into the ground and is then hydralically lifted and loaded into a "carrier", more commonly known as a dump truck.
Tracked diggers have recently grown in popularity as they can traverse many different tryps of terrain. This makes them much more versatile and able to tackle a wider range of tough jobs especially in the construction industry. Contractors benefit greatly from this versatility.
Link to ISO Quality standards: https://www.iso.org/iso-9001-quality-management.html
