Kennametal Inc. (KMT) stock plunged around 5.03% in the pre-market trading session on Wednesday, following the company's disappointing fiscal second-quarter results and lowered guidance for the full year.

For the quarter ended December 31, Kennametal reported adjusted earnings of $0.25 per share, missing analysts' estimates of $0.26. Revenue of $482.1 million also fell short of expectations of $487.6 million. The company cited lower sales volumes and unfavorable mix as factors impacting the results.

Looking ahead, Kennametal lowered its fiscal 2025 adjusted earnings per share guidance to a range of $1.05 to $1.30, down from the previous outlook of $1.30 to $1.70. The company also trimmed its revenue guidance for the year to $1.95 billion to $2 billion, compared to the prior range of $2 billion to $2.1 billion.