Feature:1. A portable collet and expander are provided to stretch the tail end before tight sealing on smaller diameter pipes.2. The exhaust pipe stretcher provides various gaskets, can be used for a wide range of expansion from 15/8in to 41/4in.3. Including: steel expander 1 5/8in2in collet, steel structure 2in2 1/2in collet, 2 3/8in2 3/4in collet, 2 3/4in 3 1/8in collet, 3 1/8in3 1/2in collet, 3 1/2in3 7/8in collet, 3 7/8in4 1/4in collet.4. Choose the appropriate collet to clamp the pipe, and then use 1/2in or 3/4in impact wrench (not included) to save more effort.5. Resistance to deformity under heavy load, save your time and energy, bring you more convenience with higher working efficiency.Specification:Item Type: Exhaust Pipe Expander KitAviation Aluminum + AlloySuitable Pipes: Approx. 1-5/8 to 4-1/4inApplication: Home DIY or auto repair shopExpansion Range: Approx. 15/8in to 41/4inIncluding: steel expander 1 5/8in2in collet, steel structure 2in2 1/2in collet, 2 3/8in2 3/4in collet, 2 3/4in 3 1/8in collet, 3 1/8in3 1/2in collet, 3 1/2in3 7/8in collet, 3 7/8in4 1/4in collet.Box Size: Approx. 30x38x9cm/11.8x15x3.5in.Package List:7 x Repair Tool1 x Plastic Box12 x Sealing Ring