This Parallel cum Bellmouth type of expander is one of the widely used Tool for Boiler Tube Expansion plus flaring of tube ends. It is most economical and rugged hence know as a workhorse in its category. Due to its superior performance, long life and easy availability, it is used throughout world. Covers all the major tube sizes for Boiler. Available in 5 different sizes of roller length, one can select the model as per the drum thickness or required length of expansion. Expansion length range from 12 mm to 66.60 mm. It has 3 plain roll and 3 flair rolls. Normally use for flaring the tube end along with Expansion.