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EXHIBIT 21.1

SUBSIDIARIES OF MSC INDUSTRIAL DIRECT CO., INC.

ENTITY						STATE OR OTHER JURISDICTION OF INCORPORATION OR ORGANIZATION
Sid Tool Co., Inc.						New York
MSC Services Corp.						New York
J&L America, Inc.						Michigan
MSC Acquisition Corp VI						New York
MSC AR Holding Co., LLC						Delaware
MSC Contract Management, Inc.						New York
MSC Foreign Properties Corporation						Delaware
American Specialty Grinding Co., Inc.						Massachusetts
Mission Real Estate Acquisition Company						Delaware
MSC Industrial Supply ULC						Canada
MSC Acquisition Subsidiary LLC						Delaware
MSC Import Export LLC						Delaware
MSC Industrial Supply S.de.R.L. de C.V.						Mexico
MSC Industrial Supply License Holder 1						Mexico
All Integrated Solutions, Inc.						Delaware
AIS Mexico LLC						Delaware
AIS All-Integrated-Solutions de Mexico, S. de R.L. de C.V.						Mexico
Wm. F. Hurst Co., LLC						Kansas
Engman-Taylor, an MSC Company, LLC						Delaware
Tower Fasteners, LLC						Delaware
Towerfast de Mexico, S de R.L. de C.V.						Mexico
Tower Fasteners de Mexico, S de R.L. de C.V.						Mexico
Tower Fasteners EU Limited						Ireland
Tower Mexico NY, LLC						New York
Buckeye Industrial Supply Company LLC, an MSC Company						Delaware
Tru-Edge Grinding LLC, an MSC Company						Delaware
MSC Shared Services S. de. R.L. de C.V.						Mexico
ApTex, an MSC Company						Wisconsin
Premier Tool Grinding, LLC, an MSC Company						Delaware
KAR Industrial, an MSC Company Inc.						Canada