1 EXHIBIT 23 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 33-26816, 33-26817, 333-99229, 333-69361 and 333-69015) of Twin Disc, Incorporated of our report dated September 16, 2005 relating to the financial statements and financial statement schedule, which appears in this Form 10-K. /s/ PRICEWATERHOSECOOPERS LLP - ----------------------------- Milwaukee, Wisconsin September 20, 2005