Exhibit 23.1 Consent of Independent Auditors We consent to the incorporation by reference in the Registration Statement (Form S-4 No. 333-43005) and the Registration Statement (Form S-4 No. 333-83117) of Park-Ohio Industries, Inc. for the registration of its 9.25% Senior Subordinated Notes due 2007 of our report dated February 25, 2003, with respect to the consolidated financial statements of Park-Ohio Industries, Inc. included in the Annual Report (Form 10-K) for the year ended December 31, 2002. /s/ ERNST & YOUNG LLP Cleveland, Ohio March 25, 2003