Twin Disc (TWIN) 10-Q/A 2012 Q3 Quarterly report (amended)

Exhibit 31b

CERTIFICATIONS

I, Christopher J. Eperjesy, certify that:

1. I have reviewed this quarterly report on Form 10-Q/A, Amendment No. 1, of Twin Disc, Incorporated;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; and

Date:  May 10, 2012	/s/ CHRISTOPHER J. EPERJESY
	Christopher J. Eperjesy
	Vice President – Finance, Chief Financial Officer and Treasurer