Kennametal Inc. (KMT) has failed to impress investors with its recent operational performance due to weakness across its segments and rising operating expenses. Also, given Kennametal’s extensive international presence, foreign currency headwind adds to the uncertainty.Based in Latrobe, PA, Kennametal is a manufacturer, marketer and distributor of high-speed metal cutting tools, tooling systems and wear-resistant parts. The company’s products are used by manufacturers and suppliers in oil and gas exploratio ...