Bolt Technology Added to Russell 3000® Index

Business Wire, July 2, 2008

NORWALK, Conn. -- Bolt Technology Corporation (BOLT:NASDAQ) today announced it has been added to the Russell 3000[R]Index after the Russell Investment Group reconstituted its comprehensive set of U.S. and global equity indexes on June 27, 2008.

Russell indexes are widely used by investment managers and institutional investors for both index funds and as benchmarks for passive and active investment strategies. The Company will remain in the Russell 3000[R] Index until the index is reconstituted in June 2009.

"We are pleased with our inclusion in this index, which reflects our continued positive momentum," said Raymond M. Soto, Bolt's Chairman, President and CEO. "Russell is an industry leader for stock indexes, and we expect our inclusion will generate greater interest in our stock among institutional investors."

Bolt Technology Corporation is a leading worldwide developer and manufacturer of seismic energy sources, seismic source controllers and synchronizers and underwater connectors used in offshore seismic exploration for oil and gas.