Small expander: 1-1/8"to 1-3/4"(29-44mm). Large expander: 2-1/8" to 3-1/2"(54-89mm). 3 x Expander. It can be used with manual ratchets or breaker levers and pneumatic/electric impact wrenches. Best gift: Designed to quickly and easily locate the dents in the muffler.
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