The pain of scraped knuckles from removal of stubborn nuts and bolts in confined spaces is all too well known to mechanics around the world. The torque of a conventional wrench is often increased by inserting the free end of the wrench into a handle extension. In confined work areas, for example under the hood of an automobile, the use of a handle extension to release stubborn nuts or bolts is often impossible because of interference with nearby objects. A gear reducing drive allows an increase in applied torque in confined spaces where a handle extension is not effective. The gear reduction facilitates a wrench with a shorter handle for work in limited spaces. The wrench drive tool has additional utility for removing nuts and bolts because of the reversible drive. Once the nut or bolt has been loosened, the wrench drive tool is then reversed to increase the drive rotational speed. Consequently, the wrench drive tool is useful for amplifying either torque or speed as required by the task.

Applications include, but are not limited to, lug nut removal from automobile wheels, bolts with damaged threads and work in confined spaces.