KENNAMETAL INC. RESTRICTED UNIT AWARD (FOR PRESIDENT AND CEO) Grant Date: August 1, 2016

2.The prohibition against transfer and the obligation to forfeit and surrender the Stock Units to the Company are herein referred to as “Forfeiture Restrictions.” The Stock Units may not be sold, assigned, pledged, exchanged, hypothecated, gifted or otherwise transferred, encumbered or disposed of, except as described in the Plan, to the extent then subject to the Forfeiture Restrictions. The Forfeiture Restrictions will be binding upon, and enforceable against, any permitted transferee of the Stock Units.

3.Provided that the Awardee’s employment is not terminated for “cause” (as defined in the Plan) and that Awardee does not breach any restrictive covenant to which he may be bound by the Company from the Grant Date through the lapse date, the Forfeiture Restrictions will lapse as follows: (a) on the first anniversary of the Grant Date, one-third (1/3) of the Stock Units will vest and the Forfeiture Restrictions will lapse as to those Stock Units; (b) on the second anniversary of the Grant Date, an additional one-third (1/3) of the Stock Units will vest and the Forfeiture Restrictions will lapse as to those Stock Units; and (c) on the third anniversary of the Grant Date, the remaining one-third (1/3) of the Stock Units will vest and the Forfeiture Restrictions will lapse as to those Stock Units.

4.The Stock Units, to the extent then subject to the Forfeiture Restrictions, will be forfeited to the Company upon termination of Awardee’s employment for “cause” (as defined in the Plan) or breach by Awardee of any restrictive covenant to which he may be bound by the Company. Upon any other Separation from Service other than termination for “cause,” the Forfeiture Restrictions will lapse in accordance with the schedule set forth below:

6.The Shares underlying Stock Units shall not be sold or otherwise disposed of in any manner that would constitute a violation of any applicable federal or state securities laws. The Company may refuse to register a transfer of the Shares on the stock transfer records of the Company if the transfer constitutes a violation of any applicable securities law and the Company may give related instructions to its transfer agent, if any, to stop registration of the transfer of the Shares.

7.This Restricted Unit Award is intended to comply with Section 409A of the Internal Revenue Code (which deals with nonqualified deferred compensation) or an exception thereto and the regulations promulgated thereunder and will be construed accordingly. The Company reserves the right to administer, amend or modify the Award or to take any other action necessary or desirable to enable the Award to be interpreted and construed accordingly. Notwithstanding the foregoing, the Awardee acknowledges and agrees that Section 409A may impose upon the Awardee certain taxes or interest charges for which the Awardee is and shall remain solely responsible. Notwithstanding the foregoing or any provision of this Award to the contrary, if this Award is subject to Section 409A (and not excepted therefrom) and a Change of Control is a distribution event for purposes of the Award, the definition of Change in Control shall be interpreted, administered and construed in a manner necessary to ensure that the occurrence of any such event shall result in a Change of Control only if such event qualifies as a change in the ownership or effective control of a corporation, or a change in the ownership of a substantial portion of the assets of a corporation, as applicable, within the meaning of Treas. Reg. § 1.409A-3(i)(5).

8.Notwithstanding anything to the contrary in this Award or the Plan, in the event that this Award is not accepted by the Awardee on or before the date that is 180 days from the grant date noted herein (the “Forfeiture Date”), then this Award shall become null and void and all Stock Units subject to this Award shall be forfeited by the Awardee as of the Forfeiture Date. For acceptance to be valid, the Awardee must accept this Award in the manner specified by the Company. Any Shares underlying the Stock Units covered by this Award that are forfeited by the Awardee shall be returned to the Plan and resume the status of shares available for grant.

9.All other terms and conditions applicable to this Award are contained in the Plan. A copy of the Plan and related Prospectus is available on your accounts page at netbenefits.fidelity.com under Plan Information and Documents, as well as on The Hub under Human Resources.