Threads:T8/T9 Bore Length: 8 inch Control Bore / 9inch with Tip Bore Options: .690 Finish: Matte FinishThreads:T8/T9 Bore Length: 8 inch Control Bore / 9inch with Tip Bore Options: .690 Finish: Matte FinishThreads:T8/T9 Bore Length: 8 inch Control Bore / 9inch with Tip Bore Options: .690 Finish: Matte Finish