Private equity firm Industrial Opportunity Partners, Evanston, IL, has acquired Western Tool Supply in Salem, OR, via its platform company Carlson Systems. Carlson, Omaha, NE, is a multi-regional distributor of product assembly systems. Terms were not disclosed.

Western Tool is a distributor of tools and supplies serving the fastening needs of construction, industrial, and woodworking customers, with products such as hand-held nailers, staplers and related fasteners. Western Tool operates 14 sales sites in Oregon, Washington, Idaho, Utah and Montana.

Jim Todd, chairman of Carlson and an operating principal of IOP, said the acquisition expands Carlson’s geographical coverage to the Pacific Northwest. Western Tool represents Carlson’s first acquisition since IOP invested in Carlson in 2009.