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Ingersoll Rand () is a $17 billion global diversified industrial company founded in 1871. The Ingersoll Rand name came into use in 1905 through the combination of Ingersoll-Sergeant Drill Company and Rand Drill Company. Ingersoll Rand used to be part of the S&P 500 (one of the 13 companies in that index that is incorporated outside the U.S.), but was replaced by Quanta Services in June 2009.Reuters, "S&P 500 adds Quanta Services, drops Ingersoll-Rand," June 4, 2009.

The CEO, Herbert L. Henkel, is paid an annual salary of $1,275,000.

Ingersoll Rand is a global provider of products, services, and integrated solutions to industries as diverse as transportation, manufacturing, construction, and agriculture. Examples include refrigeration, biometric security systems, medium to large-scale air compressors, and compact vehicles for construction and movement of people and goods.

Mining and construction support equipment (such as mobile diesel generators and compressors) is the primary field identified with the Ingersoll Rand brand, but they also manufacture many products under other brand names, including:

* Club Car golf cars

* Hussmann refrigeration units

* Kryptonite locks

* Schlage locks

* Trane HVAC equipment

* Falcon Door Hardware - locks, exits, closers

* LCN door closers

* Von Duprin exit devices

* Thermo King transport refrigeration units

* Interflex, German based European provider and manufacturer of hardware and software for security solutions and time management planning.

* Normbau

* Cisa

* OMI Officine Meccaniche Industriali srl (OMI), a leading European provider of compressed-air treatment equipment

S-K Hand Tools is a tool company located in Chicago, Illinois. Major products include sockets and drive tools, wrenches, air tools, and other mechanics' tools; SK has a tool line of over 3500 pieces including wrenches, ratchets, screwdrivers, tool boxes and air tools. SK has manufacturing facilities in Chicago, Illinois and Defiance, Ohio. The Defiance facility forges and chromes many of the sockets, wrenches, and ratchets contained in the S-K line.[http://www.skhandtool.com/Default.aspx?fusemode=15] Outlets for their products include independent tool-truck dealers, auto parts stores, and major internet vendors such as Sears and amazon.com.

A wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects?usually rotary fasteners, such as nuts and bolts?or keep them from turning.

In American English, wrench is the standard term, while spanner refers to a specialized wrench with a series of pins or tabs around the circumference. (These pins or tabs fit into the holes or notches cut into the object to be turned.) The most common shapes are called open-end wrench and box-end wrench.

In British English, spanner is the standard term. The most common shapes are called open-ended spanner and ring spanner. The term wrench refers to a type of adjustable spanner.

Higher quality wrenches are typically made from chromium-vanadium alloy tool steels and are often drop-forged. They are frequently chrome-plated to resist corrosion.

Hinged tools, such as pliers or tongs, are not generally considered wrenches.