The Callaway X-18 4-iron is part of Callaway’s X-Series line of irons (released circa mid-2000s). It’s built with a steel shaft (Stiff flex) and is designed for players seeking a traditional long-iron feel in a refined profile. The X-18 series features Callaway’s “360° Undercut Channel” design which allows weight redistribution around the perimeter to boost forgiveness and ball speed.
Key Features
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Steel Shaft / Stiff Flex: This version’s steel shaft gives firmer feel and traditional long-iron feedback, tailored for players with stronger swing speeds. Example listing: 4-iron, steel stiff, True Temper Dynamic Gold S300.
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Long-Iron Profile: As a 4-iron, the loft is typically in the ~23° range for this series. Example: Callaway X-18 Pro Series 4-iron had loft ~23.5° in specs list.
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Callaway X-18 Construction: The club features Callaway’s 360° undercut channel which helps create a thinner, faster face and increased perimeter weighting for more forgiveness in a long-iron build.
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Player-Grade Feel: The X-18 series (especially in “Pro” or “Stiff” builds) was aimed at players who have the tempo and control to benefit from more traditional long irons rather than game-improvement hybrids.
