Steel expander 1 5/8in - 2in Collet. Steel expander 2in - 2-1/2in Collet. 1 x Exhaust Pipe Expander Tool Kit (7 Pcs). Air Punch Tool Pneumatic Punching Machine Crimper Hole Punching Flanging Tool. Application: To extend the exhaust pipe from 1‑5/8in to 4‑1/4in.
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