
In golf, TB stands for Trouble Wedge, a Wilson-branded golf club that is one club above a lob wedge, usually 64*.
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What You'll Learn

Fourteen Golf's TB-5 Irons
The TB-5 irons feature a universal sole grind that is extremely versatile and helps prevent digging. This improves turf interaction, leading to more consistent shots and distance. The irons also have a new Theatre Blade design, which removes the cavity step in the back face, allowing the thickness to flow naturally in a curved shape. This structure controls the vibration and centre of gravity transmitted to the hand, achieving both "feel" and "gentleness" demanded by golfers for soft iron forging.
The Fourteen Golf TB-5 irons are available for purchase on the Fourteen Golf website and through select retailers. Fourteen Golf offers a Demo Direct Program where you can try a 7-iron for 14 days before committing to buying the full set. The cost of the demo club will be refunded upon its return.
The TB-5 irons have received positive reviews, with golfers praising their performance, forgiveness, and forged feel. The irons' aesthetics have also garnered attention, with the signature Fourteen Golf feather logo adding a unique touch.
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S20C steel composition
TB in golf, as seen in the Fourteen Golf TB-5 Irons, stands for Theater Blade. The new Theatre Blade design has a forged head made of mild steel, creating a larger sweet spot and increasing distance and direction.
Now, onto the topic of S20C steel composition. S20C steel, also known as AISI 1020 steel, is a type of low-carbon steel that is widely used in industrial manufacturing due to its excellent processability, weldability, and mechanical strength. Its chemical composition primarily consists of carbon, silicon, manganese, phosphorus, and sulfur. The carbon content in S20C steel is relatively low, ranging from 0.17% to 0.23%, which enhances its weldability and machinability while maintaining appropriate strength and hardness. Silicon is typically present in S20C at levels between 0.17% and 0.37%, improving the steel's toughness and corrosion resistance. Manganese, with a content ranging from 0.30% to 0.60%, acts as a deoxidizer, reducing oxygen content and increasing purity and strength. Phosphorus and sulfur are impurity elements that should be minimised to ensure consistent performance, as they can negatively impact the steel's plasticity, toughness, and brittleness.
In addition to these primary elements, S20C steel may also contain minor amounts of alloying elements such as chromium and nickel, enhancing specific properties like corrosion resistance and heat tolerance. S20C steel is known for its good weldability and workability, allowing it to be shaped through various processing methods. It is commonly used in machinery manufacturing, automobile manufacturing, and construction engineering. Overall, S20C steel's unique composition and excellent performance make it a favoured material in numerous industrial applications.
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Theater Blade design
The Fourteen Golf TB-5 Forged Irons have been given a new shape with the "Theater Blade" model, offering feel and forgiveness in equal measure. The TB5 irons are soft steel forged in design and are designed for golfers with 86-95 mph swing speeds. The new design has removed the cavity step in the back face, improving the shape of the clubhead and increasing the size of the sweet spot. This removal of the cavity step allows the thickness of the club to flow naturally in the curved shape of a theater, creating an optimal centre of gravity and reducing vibrations transmitted to the hands. The result is an optimally balanced iron with an enhanced feel and forgiveness.
The Fourteen Golf TB-7 Forged Irons offer a compact design with the new Theater Blade for enhanced feedback, workability, and forgiveness. The TB-7 has a smaller head size than the TB-5, which places the extra weight in the Theater Blade, increasing its utility. The TB-7 irons are designed for amateurs who want a pure, classic blade feel with enough forgiveness to control their shots around the course. The compact design features a minimal offset, good workability, and a long and forgiving feel, making them perfect for many amateur golfers.
The TB-5 and TB-7 Forged Irons from Fourteen Golf offer unique features that cater to different types of golfers. The TB-5 irons provide a larger sweet spot and are suitable for golfers with swing speeds between 85-96 mph, while the TB-7 irons offer a compact design and enhanced feedback for improved control. Both sets of irons utilise the Theater Blade design, which optimises the centre of gravity and reduces vibrations, resulting in a soft and forgiving feel.
The Theater Blade design has revolutionised the performance and feel of golf irons. By removing the cavity step and utilising soft materials like S20C mild steel, the Theater Blade creates a natural curvature that enhances the centre of gravity. This innovative design reduces vibrations transmitted to the hands, resulting in a soft and forgiving feel. The Theater Blade's optimal balance and enhanced feedback empower golfers, from amateurs to professionals, to achieve consistent and controlled shots around the course.
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Mitsubishi Golf's Diamana TB
The Diamana TB is a mid-launching, mid-spinning shaft that produces slightly higher launch angles and a bit more spin. It features a medium-stiff tip section, a slightly stiffer butt section, and a stiff midsection. This Mitsubishi shaft is ideal for golfers with slightly more metered, smooth swing mechanics. With the Diamana TB, players with slower swing speeds can still achieve longer distances without needing to try harder.
The shaft boasts pleasant, calming, cool-blue aesthetics, and its performance lives up to its looks. It is one of the best Mitsubishi shafts of 2024 and is a highlight among the many other forgiving and highly aggressive ultra-stiff shafts in their catalogue.
Mitsubishi Golf recommends being fit by a professional fitter to ensure that the Diamana TB shaft is right for your needs and swing speed.
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Xlink Tech Resin System
TB in golf refers to the Fourteen Golf TB-5 Irons, a set of premium golf clubs trusted by professionals and amateurs. The TB-5 irons have a larger forged head made of mild steel, which increases the sweet spot for better distance and direction. The universal sole grind prevents digging and improves turf interaction for more consistent shots.
Now, the Xlink Tech Resin System is a breakthrough innovation featured in the TENSEI 1K and Diamana families of golf shafts. This technology addresses the challenge of achieving a high carbon-to-resin ratio without compromising durability. By reducing resin content and increasing carbon fibre volume, the Xlink Tech Resin System enhances the feel and strength of the shaft.
Traditionally, a low-resin and high-carbon composition results in a brittle shaft. However, the Xlink Tech Resin System employs a unique cross-linking mechanism where epoxy and non-epoxy components intertwine, significantly boosting the shaft's strength. This cross-linking process not only improves performance but also ensures the shaft's resilience to stress and wear.
The Xlink Tech Resin System in the TENSEI AV Series Blue, for instance, incorporates Aluminium Vapor in the handle for exceptional stability. Golfers who prefer Blue profiles in the TENSEI line can benefit from the enhanced feel and strength offered by this resin system.
In summary, the Xlink Tech Resin System revolutionises golf shaft design by optimising the carbon-to-resin ratio, resulting in a product that feels better, performs stronger, and withstands the rigours of the game. This technology showcases the continuous pursuit of innovation in golf equipment, elevating the experience for golfers of all skill levels.
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Frequently asked questions
TB in golf usually refers to the Trouble Wedge, a Wilson-branded golf club. It is also used to refer to the Fourteen Golf TB-5 Irons and the Diamana TB golf shaft.
The Fourteen Golf TB-5 Irons are premium golf clubs, trusted by professionals and amateurs alike. They are precision-crafted with a larger forged head made of mild steel, which increases the sweet spot and improves distance and direction.
The Diamana TB is a golf shaft built to be the smoothest and most pleasing-feeling golf shaft possible. It is a mid-launching, mid-spinning 5th Generation Diamana "Blueboard" offering, with a firm midsection and an active tip section.
A Trouble Wedge is a golf club that is used for attempting low-percentage flop shots. It is one club above a lob wedge, usually 64 degrees.

























