The Ingersoll Rand 3940B Pneumatic Wrench is a 1-inch square-drive, air-powered fastener tool featuring an inline oiler and a 4-foot hose. The inline oiler provides lubrication during use, while the 4-foot hose offers flexible connection to a compressed-air supply. This configuration delivers a compact, ready-to-use pneumatic wrench suitable for general fastening tasks where reliable performance is required.
