A concrete saw being readied for use. The man in the background is preparing the hose to deliver water to cool the saw, whilst the operator is moving the saw to the required position. A substantial engine powers the unit.

A concrete saw is a power tool used for cutting concrete. The significant friction generated in cutting hard substances like concrete means that concrete saws are often water cooled. Jump to: navigation, search Water (from the Old English word wæter; c. ... Jump to: navigation, search A colorized automobile engine The internal combustion engine is a heat engine. ... Jump to: navigation, search A power tool is a tool with a motor. ... Jump to: navigation, search In physics, friction is the non-conservative resistive force that occurs when two surfaces travel along each other when forced together. ...