The Wing Sung Junlai 630 Wrench is a compact metal maintenance tool designed for disassembling and servicing the piston mechanism of the Junlai/Wing Sung 630 fountain pen. The Junlai 630 uses a piston filling system, and compatible wrenches are supplied with or sold for servicing this mechanism.

Please Note: This is a maintenance/disassembly tool and should be used carefully. Incorrect or excessive force during disassembly may damage the pen or internal components.

FAQ

What makes Moonman Pen different from other pens?

What type of ink is used in Moonman Pens?

Are Moonman Pens refillable?

How do I replace the ink cartridge in my Moonman Pen?

What materials are used in the construction of Moonman Pens?

Do you offer a warranty on Moonman Pens?

Can I personalize my Moonman Pen?

Is Moonman Pen suitable for left-handed users?

How long does the ink last in a Moonman Pen?

Where are Moonman Pens manufactured?