Sheaffer O-Ring Seater for PFM (Tool S24)

Helps a great deal in getting a new O-Ring seated in the back end of a PFM barrel. To use it, you remove all the parts from inside and outside the barrel, take the old O-Ring out with a D3 probe, clean the slot out and grease it up, stick the business end of this tool through the front of the barrel, and work a new O-Ring into the slot on the pen. The tool comes with a small tamper to help push the O-Ring down and sideways into the slot. The S24 PFM provides a bottom inside the barrel to guide the O-Ring into the slot. And you're good to go. Finish putting the rest of the pen together. This is another tool designed to keep you from going nuts while working on Sheaffers.

We also make this tool for Snorkels and Touchdown pens, tool D19.
Our D12 pick is very helpful in getting out the old O-ring.