1 Exhibit 23.1 CONSENT OF INDEPENDENT AUDITORS We consent to the incorporation by reference in this Registration Statement on Form S-8 pertaining to the 1998 Long-Term Incentive Plan of Park-Ohio Holdings Corp. for the registration of 550,000 shares of its common stock of our report dated February 16, 1998 with respect to the consolidated financial statements of Park-Ohio Industries, Inc. included in its Annual Report on Form 10-K for the year ended December 31, 1997, filed with the Securities and Exchange Commission. /s/ERNST & YOUNG LLP Cleveland, Ohio June 26, 1998