Grease Guns are tools used to apply lubrication in the form of grease to machinery and equipment. They are commonly used in automotive, industrial, and agricultural settings to ensure that moving parts are adequately lubricated, reducing wear and tear. Available in manual, pneumatic, and cordless versions, grease guns allow for precise application and can reach hard-to-access areas. Regular lubrication helps maintain equipment performance and extend its lifespan, making a grease gun an essential tool in maintenance routines.