EXHIBIT 21.01

SUBSIDIARIES OF MSC INDUSTRIAL DIRECT CO., INC.

CORPORATION	STATE OF INCORPORATION
Sid Tool Co., Inc		New York
Primeline International, Inc		New York
MSC Services Corp		New York
Swiss Precision Instruments, Inc		California
Enco Manufacturing Co., Inc.		New York
J&L America, Inc		Michigan
MSC Acquisition Corp VI		New York
MSC Contract Management, Inc		New York
MSC Foreign Properties Corporation		Delaware
American Specialty Grinding Co., Inc		Massachusetts
MSC Acquisition Corp VII.		New York
Mission Real Estate Acquisition Company		Delaware