EXHIBIT 18 [GIDDINGS & LEWIS, INC. LETTERHEAD] May 27, 1997 Mr. Jeffery T. Grade Chairman and Chief Executive Officer Harnischfeger Industries, Inc. 3600 South Lake Drive St. Francis, WI 53235-3716 Dear Mr. Grade: The Board of Directors of Giddings & Lewis is productively engaged in the ongoing evaluation of all strategic alternatives for the Company. Moreover, your concern that this process is adversely affecting the value of Giddings & Lewis is misplaced. Our business is good, and we expect to report favorable results for the second quarter. Given the importance of this matter, we believe that a deliberate review of our alternatives is in the best interests of our stockholders, customers and employees. Sincerely, /s/ MARVIN L. ISLES Marvin L. Isles Chairman and Chief Executive Officer