This is a special wide version of the Tridan Model BTM Tube End Sizer which is designed to bell the tube extensions for insertion of return bends and other fittings. This device is hydraulically operated and and will bell up to 9 tubes per cycle. The Model BTM-1 Tube End Sizer is one of a family of tube end sizers built by TRIDAN. The Models BTA-2 and BTP-2 Tube End Sizer are air powered devices for single tube applications. The Models BFA-2V and BFA-2H Tube End Sizers/Flarers are single tube air operated tube end sizers, which also flare the tube end. Being hydraulically powered, the Model BTM-1 has an increased capacity for expanding up to nine(9) tubes at one time.