3/4 inch drive ratchets are designed for ultra-high torque applications, capable of handling heavy-duty tasks that other ratchet sizes cannot. They excel at removing and tightening large bolts and nuts, making them ideal for use in heavy machinery, construction, and industrial maintenance.

However, it's important to note that 3/4 inch drive ratchets are the largest and heaviest among all sizes. Their operation requires more space, which can pose challenges when working in confined areas.