EXHIBIT 21

                                  SUBSIDIARIES

     The Registrant, Bolt Technology Corporation, a Connecticut corporation, has
no parent.

              The following are the subsidiaries of the Registrant


                                                                State of
                                                              Incorporation
                                                              -------------

A-G Geophysical Products, Inc.                                Texas

Custom Products Corporation                                   Connecticut

The names of certain subsidiaries are omitted since such subsidiaries considered
in the aggregate would not constitute a significant subsidiary at the end of the
year covered by this report.