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                                                                    EXHIBIT 23.3
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We hereby consent to the inclusion and incorporation by reference in the
Prospectuses constituting part of this Registration Statement on Form S-3 of our
report dated January 30, 1997 appearing on page 24 of the Greenfield Industries,
Inc. 1996 Annual Report, which is incorporated by reference in the Greenfield
Industries, Inc. Annual Report on Form 10-K for the year ended December 31,
1996. We also consent to the incorporation by reference of our report on the
Financial Statement Schedule, which appears on page S-1 of Such Annual Report on
Form 10-K. We also consent to the reference to us under the heading "Experts" in
such Prospectuses.
 
/s/ PRICE WATERHOUSE LLP
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PRICE WATERHOUSE LLP
 
St. Louis, Missouri
   
January 2, 1998
    
