Exhibit 23.4 September 6, 2002 Cooper Industries, Inc. 600 Travis, Suite 5800 Houston, Texas 77002-1001 Ladies and Gentlemen: We hereby consent to the incorporation by reference in the Registration Statement pertaining to the offer by Cooper Industries, Inc. (the "Company") of $300 million aggregate principal amount of 5.25% Senior Notes due 2007 of the reference to an analysis, which our firm assisted with, concerning the contingent liability exposure of the Company for certain asbestos-related claims, under "Item 3. Legal Proceedings" and "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations - Critical Accounting Policies and Estimates" included in the Company's Annual Report on Form 10-K for the year ended December 31, 2001, and in Note 3 to its consolidated financial statements for the year ended December 31, 2001. Sincerely, /s/ Charles E. Bates, CEO BATES WHITE BALLENTINE