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Holiday Hours: Warehouse Pickup until 12pm, 24 Dec | Warehouse and Customer Service closed 25 Dec - 4 Jan 2026 | Online store stays open 24/7 with holiday deals | Hurry, get your order in before our break | Click here for full details
Holiday Hours: Warehouse Pickup until 12pm, 24 Dec | Warehouse and Customer Service closed 25 Dec - 4 Jan 2026 | Online store stays open 24/7 with holiday deals | Hurry, get your order in before our break | Click here for full details

TWSBI Metal Wrench

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Original price $9.95 - Original price $9.95
Original price
$9.95
$9.95 - $9.95
Current price $9.95
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Replacement TWSBI Metal Wrench

The TWSBI Metal Wrench is a durable, precision tool designed for safely disassembling TWSBI piston fountain pens, perfect if you have misplaced the original that came with your TWSBI fountain pen. Made from sturdy metal, it provides better grip and control compared to the standard plastic wrench, making maintenance and piston seal replacements easier and more secure.

  • Solid metal construction

  • For disassembling and servicing TWSBI piston-filling fountain pens

  • Stronger and longer-lasting than the standard plastic wrench

  • Not suitable for TWSBI ECO / ECO-T

An essential tool for TWSBI owners who like to maintain their pens with confidence and ease.

Note: Use with care. Only disassemble your pen if you are familiar with the process or following TWSBI’s official maintenance instructions.

TWSBI

Inspired by writing

After 50 plus years as an OEM manufacturer for different global brands, Ta Shin Precision decided to start selling under their own brand, and thus TWSBI was born.

TaShin Precision has over 50 years of experience in manufacturing with plastics and metals. Early products ranged from toy lego parts to high end writing instruments. This knowledge trickles down into every product TWSBI has to offer.

TWSBI's name stands for the phrase "Hall of Three Cultures" or "San Wen Tong" in Chinese. The character "Wen" translates into language and culture. The phrase "San Wen Tong" also brings to mind the Hall of the Three Rare Treasures created by Emperor Qianlong as a memorial to three great masterpieces of Chinese calligraphy. The initials of the phrase "San Wen Tong" was reversed and thus turned into "TWS". The last letters "Bi" was added with its literal meaning of "writing instruments". Thus combining the two segments, creating TWSBI.

The TWSBI Mission

To inspire and recapture the romanticism of art and literature - starting with the pen.

To achieve their mission:

- They are dedicated to manufacturing the highest quality and precision writing instruments
- Tailoring our products according to our customer's wants and needs
- Providing sincere and dedicated customer service