EXHIBIT 32.2

CERTIFICATION PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of MSC Industrial Direct Co., Inc. (the “Company”) for the fiscal quarter ended May 26, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jeffrey Kaczka, Chief Financial Officer of the Company, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: June 29, 2012

By: /s/ Jeffrey Kaczka

Name: Jeffrey Kaczka
Chief Financial Officer
(Principal Financial Officer)

A signed original of this written statement required by Section 906 has been provided to MSC Industrial Direct Co., Inc. and will be retained by it and furnished to the Securities and Exchange Commission or its staff upon request.