
Combines the Style 81-S Swivel Mount with the Shakespeare Style 408-R moulded upper bracket.
The bracket features an insert to accept 1" or 1½" diameter antennas or extension masts and now includes a new 11/8" insert!
Swivel mount is stainless steel construction
Standard 1"-14 thread (male)
Designed for use with the Shakespeare 390 SSB antenna range