The Park Tool HR-12 12mm Hex Wrench, click to enlarge

Item # HR-12

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12mm Hex Wrench

The Park Tool HR-12 is a simple 12 millimeter hex wrench, constructed from through-hardened industrial-quality steel with chamfered tips for a precision fit. 12 mm hex wrenches are sometimes necessary for removing the freehub bodies from several popular brands of hubs (Mavic®, Sun Race®, Sovos™, and others). Also sometimes used for thru axle hub service.

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HR-12 Features

  • 12 mm hex wrench