Exhibit 12.1 GREENFIELD INDUSTRIES, INC. RATIO OF EARNINGS TO FIXED CHARGES (UNAUDITED) (dollars in thousands) Historical Pro Forma -------------------------------------------------------------------- ------------------------ Three Months Three Months Ended Year Ended Ended Year Ended December 31, March 31, December 31, March 31, 1991 1992 1993 1994 1995 1995 1996 1995 1996 ------------------------------------------------ ------------------- ------------------------ Earnings: Pre tax earnings (loss) ($11,833) $ 2,687 $21,984 $36,115 $52,855 $11,960 $14,431 $54,228 $16,156 Interest expense 13,814 12,764 8,302 3,169 8,223 2,117 3,513 6,919 1,788 Rent (1) 525 631 647 764 947 237 326 1,416 326 Preferred stock dividends -- -- -- -- -- -- -- 6,900 1,725 ------------------------------------------------ ------------------- ------------------------ Adjusted earnings (A) $2,506 $16,082 $30,933 $40,048 $62,205 $14,314 $18,270 $69,463 $19,995 ================================================ =================== ======================== Fixed charges: Interest $13,814 $12,764 $8,302 $3,169 $8,223 $2,117 $3,513 $6,919 $1,788 Rent (1) 525 631 647 764 947 237 326 1,416 326 Preferred stock dividends -- -- -- -- -- -- -- 6,900 1,725 ------------------------------------------------ ------------------ ------------------------- Adjusted fixed charges (B) $14,339 $13,395 $8,949 $3,933 $9,170 $2,354 $3,839 $15,235 $3,839 ================================================ ================== ========================= Ratio of earnings to fixed charges (2) 1.20 3.46 10.18 6.76 6.08 4.76 4.56 5.21 (A/B) <FN> (1) The Company estimates that the interest portion of rent expense is equivalent to one-third of total rent expense. (2) For the year ended December 31, 1991, earnings as calculated above were inadequate to cover fixed charges. The coverage deficiency was $11,833. </FN>