EXHIBIT 10.18 AMENDMENT TO EMPLOYMENT AGREEMENT THIS AGREEMENT entered into as of August 9, 2001 between ESCO Technologies Inc. ("Company") and Charles J. Kretschmer ("Executive). WITNESSETH: WHEREAS, the Company and the Executive entered into an Employment Agreement as of November 3, 1999 ("Agreement"); and WHEREAS, the parties retained the right to amend the Agreement pursuant to Article 15 thereof; and WHEREAS, the parties desire to amend the Agreement effective as of August 9, 2001; NOW, THEREFORE, effective as of August 9, 2001, the Agreement is amended as follows: 1. The following is added at the end of Paragraph 1: This Agreement shall be extended until November 2, 2004. IN WITNESS WHEREOF, the foregoing Agreement was executed effective as of August 9, 2001. ESCO TECHNOLOGIES INC. By: ------------------------------ ------------------------------ Charles J. Kretschmer AMENDMENT TO EMPLOYMENT AGREEMENT THIS AGREEMENT entered into as of August 9, 2001 between ESCO Technologies Inc. ("Company") and Alyson S. Barclay ("Executive). WITNESSETH: WHEREAS, the Company and the Executive entered into an Employment Agreement as of November 3, 1999 ("Agreement"); and WHEREAS, the parties retained the right to amend the Agreement pursuant to Article 15 thereof; and WHEREAS, the parties desire to amend the Agreement effective as of August 9, 2001; NOW, THEREFORE, effective as of August 9, 2001, the Agreement is amended as follows: 2. The following is added at the end of Paragraph 1: This Agreement shall be extended until November 2, 2004. IN WITNESS WHEREOF, the foregoing Agreement was executed effective as of August 9, 2001. ESCO TECHNOLOGIES INC. By: ------------------------------ ------------------------------ Alyson S. Barclay AMENDMENT TO EMPLOYMENT AGREEMENT THIS AGREEMENT entered into as of August 9, 2001 between ESCO Technologies Inc. ("Company") and Victor L. Richey, Jr. ("Executive). WITNESSETH: WHEREAS, the Company and the Executive entered into an Employment Agreement as of November 3, 1999 ("Agreement"); and WHEREAS, the parties retained the right to amend the Agreement pursuant to Article 15 thereof; and WHEREAS, the parties desire to amend the Agreement effective as of August 9, 2001; NOW, THEREFORE, effective as of August 9, 2001, the Agreement is amended as follows: 3. The following is added at the end of Paragraph 1: This Agreement shall be extended until November 2, 2004. IN WITNESS WHEREOF, the foregoing Agreement was executed effective as of August 9, 2001. ESCO TECHNOLOGIES INC. By: ------------------------------ ------------------------------ Victor L. Richey, Jr.