Single multi-use product that incorporates a tyre valve key, internal valve thread tool, external valve thread tool and valve core Product Details 4 IN 1 - Tool includes a tyre valve key, internal valve thread tool, external valve thread tool and valve core extractor. Directions for use: Clear internal thread in the valve stem Clear external thread on valve system Extract damaged valve core Remove valve core by fitting key-way in valve tool over the core and turning anti-clockwise
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