PILOT μ701 Disassembly Jig for Fountain Pen This is a disassembly jig for those who want to remove the nib from the stainless steel nib of the Pilot μ701 fountain pen and perform maintenance themselves. It is handmade from shaped aluminum pipe, but it has sufficient strength and durability. You can use it to correct and adjust the nib after removing it, and for maintenance such as removing ink residue. If ink is stuck inside the neck, be sure to clean it thoroughly before disassembling.