v3.26.1
Document and Entity Information
May 28, 2026
Document And Entity Information [Line Items]  
Entity Registrant Name KENNAMETAL INC
Amendment Flag false
Entity Central Index Key 0000055242
Document Type 8-K
Document Period End Date May 28, 2026
Entity Incorporation State Country Code PA
Entity File Number 1-5318
Entity Tax Identification Number 25-0900168
Entity Address, Address Line One 525 William Penn Place
Entity Address, Address Line Two Suite 3300
Entity Address, City or Town Pittsburgh
Entity Address, State or Province PA
Entity Address, Postal Zip Code 15219
City Area Code (412)
Local Phone Number 248-8000
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Capital Units [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Capital Stock, par value $1.25 per share
Trading Symbol KMT
Security Exchange Name NYSE
Preferred Stock Purchase Rights [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Preferred Stock Purchase Rights
Security Exchange Name NYSE