EXHIBIT 32a

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In connection with the Annual Report of Twin Disc, Incorporated (the “Company”) on Form 10-K for the fiscal year ending June 30, 2006, as filed with the Securities and Exchange Commission as of the date hereof (the “Report”), I, Michael E. Batten, Chairman, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1)	the Report fully complies with Section 13(a) 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.

/s/ MICHAEL E. BATTEN
 Michael E. Batten
 Chairman, President and Chief Executive Officer

 September 13, 2006