Exhibit 99.1

                   WSI INDUSTRIES ANNOUNCES PLANT ACQUISITION

Minneapolis, MN -- May 3, 2004 -- WSI Industries, Inc. (Nasdaq: WSCI) announced
today that it closed on the purchase of an existing 49,000 square foot facility
located in Monticello, MN. The purchase price was $1.9 million and was paid for
by a combination of cash and debt. WSI currently operates out of a leased 28,000
square foot facility located in Osseo, MN. Plans call for relocation to the
Monticello facility over the next 6 months.

Michael J. Pudil, president and chief executive officer, commented: "We are
pleased with the acquisition of the facility and the assistance and cooperation
provided by the City of Monticello. A driving factor in our decision to relocate
was the growing level of business from the Company's recreational vehicle market
that includes ATV's and motorcycles. In addition, we are continuing to see
improvement in our other key markets of avionics and defense." Pudil went on to
say: "The building is a modern facility that was designed and built specifically
for contract machining. The increase in size will accommodate our current
customer requirements and meet our projected growth opportunities."

WSI Industries, Inc. is a leading contract manufacturer that specializes in the
machining of complex, high-precision parts for a wide range of industries,
including avionics and aerospace, recreational vehicles, computers, small
engines and the defense market.

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For additional information:
Michael J. Pudil (CEO) or Paul D. Sheely (CFO)
763-428-4308

The statements included herein which are not historical or current facts are
forward-looking statements made pursuant to the safe harbor provisions of the
Private Securities Reform Act of 1995. There are certain important factors which
could cause actual results to differ materially from those anticipated by some
of the statements made herein, including the Company's ability to retain current
programs and obtain additional manufacturing programs, and other factors
detailed in the Company's filings with the Securities and Exchange Commission.