from The Century Dictionary and Cyclopedia
- n. A unit of energy, being the work done in raising a pound through an inch.
Sorry, no etymologies found.
Tighten the base screws as if you were paid by the inch-pound but will be docked a month's wages if you twist one off.
The 100-hour interval is a "when-to" (and therefore not mandatory), while the 330 ±30 inch-pound torque is a "how-to" (and therefore mandatory).
It is not really that powerful with its 203 inch-pound DC motor, but it gets the job done.