Portable tools powered by the human hand, electricity, or gasoline. Basic hand tools may include wrenches, pliers, screwdrivers, drills, or hammers. Portable power tools such as drills and grinders may be corded, battery-powered, or gasoline-powered.
The Bochem™ diamond pencil is used for permanent labelling of microscope slides and other glass products in the lab. Etched glass is resistant to humidity and washing.