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INVESTMENT IN MASTER TRUST
 12 Months Ended
Dec. 31, 2025
EBP 002  
EBP, Master Trust [Line Items]  
INVESTMENT IN MASTER TRUST INVESTMENT IN MASTER TRUST
All of the Plan's investments are held in the Master Trust, which was established for investment of assets of the plans making up the Kennametal Inc. Program, which consists of the Plan and the Savings plan. The Master Trust offers mutual funds, common/collective trusts, Kennametal Inc. capital stock, a stable value fund and a self-directed brokerage account as investment options. Only participants participating in the Plan are permitted to invest in Kennametal Inc. capital stock. Each participating plan’s interest in the investment funds (i.e., separate accounts) of the Master Trust is based on the account balances of the respective plan's participants and their elected investment funds. The Master Trust additions and deductions are allocated among the participating plans in the Master Trust by assigning to each such plan those transactions (primarily contributions, benefit payments, and plan specific expenses) that can be specifically identified and by allocating among all plans, based on the respective plan's asset allocation and fair value, income and expenses resulting from the collective investment of the assets of the Master Trust.
Investments held by the Master Trust and the Plan at December 31 is as follows:

20252024
Master Trust BalancesPlan's Divided Interest in Master Trust BalancesMaster Trust BalancesPlan's Divided Interest in Master Trust Balances
Investments valued at net asset value (NAV):
  Common/Collective trusts$460,722,293 $457,012,660 $247,756,747 $243,472,372 
Investments at fair value:
  Mutual funds94,876,880 92,310,230 268,678,941 265,957,911 
  Kennametal Inc. capital stock13,234,944 13,234,944 12,365,608 12,365,608 
  Self-directed brokerage account10,831,151 10,831,150 10,054,688 10,054,687 
     Total investments at fair value579,665,268 573,388,984 538,855,984 531,850,578 
Investments at contract value:
  Stable Value Fund48,892,871 46,870,985 56,697,392 53,906,757 
Total investments$628,558,139 $620,259,969 $595,553,376 $585,757,335 

The Master Trust has no other assets or liabilities at December 31, 2025 and 2024.

Investment income attributable to the Master Trust for the year ended December 31, 2025 was as follows:

Net appreciation in fair value of investments$75,750,469 
Interest and dividends10,739,312 
Total investment income$86,489,781