W.W. Grainger, Inc. is a business-to-business distributor of maintenance, repair and operating (MRO) products and services with operations primarily in North America, Japan and Europe. The Company's MRO product offering is grouped under several broad categories, including material-handling equipment, safety and security supplies, lighting and electrical products, power and hand tools, pumps and plumbing supplies, cleaning and maintenance supplies and metalworking tools. The Company's business segments include High-Touch Solutions North America (N.A.) and Endless Assortment. The High-Touch Solutions N.A. segment includes the Grainger-branded businesses in the United States, Canada, Mexico and Puerto Rico. The Endless Assortment segment includes the Company’s Zoro Tools, Inc. (Zoro) businesses in the United States and United Kingdom, and MonotaRO Co., Ltd. (MonotaRO), which operates in Japan.