The person who taught me to broach bronze liners used hose clamps, but sometimes they crack. More often it’s when it has had a .502” service guide installed. So instead of hose clamps, I bought some inexpensive split collars for 1/2″. A person could machine them for another I.D., for larger guides.
Big Don Kincaid
Big Don’s Racing Engines
East Tawakoni, TX