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Doubleday Golf Co.
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Project X VRTX Irons

2024 · Discontinued · Graphite iron shaft · 64–82g · torque 3.3–5.6°

Maker specifications

Maker specifications for the Project X VRTX Irons, flex by flex
FlexWeightTorqueTipButtLength
60g Amateur64g5.6°0.37"0.595"41"
70g Regular72g3.4°0.37"0.6"41"
80g Stiff82g3.3°0.37"0.6"41"
Build
Graphite iron shaft, VRTX family
Sources
Published specifications and model history via truetemper.com (medium confidence on the launch year)

Weight by flex

Project X VRTX Irons weight by flex: 60g Amateur 64g, 70g Regular 72g, 80g Stiff 82g0g20g40g60g80g100g6460g Amateur5.6°7270g Regular3.4°8280g Stiff3.3°
Raw weight for each flex the maker lists, with torque underneath.

Thinking about this shaft?

Bring your club by and we’ll measure what you play now against this sheet, then build a test club so you can hit the two side by side before anything gets pulled. Numbers here are raw, uncut, as the maker publishes them.