For the quarterly period ended: September 30, 2019 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☐ 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☒ 1934 For the transition period from _______ to _______ Commission file number 1-5318 KENNAMETAL INC. (Exact name of registrant as specified in its charter) Pennsylvania 25-0900168 (S ...