Stonfo · Dubbing and hair tools

Stonfo 635 Fly Tying Thread Splitter

A dedicated splitter for opening the strands of suitable tying thread before inserting fibers.

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Red Stonfo thread splitter with a close-up of the head
The inset is a detail of the working head.

Description

Choose this tool when your pattern calls for a split-thread body. Open the thread at the point where you want to insert the fibers. Check the thread first, since some constructions separate easily and others do not.

Specifications

Selected reference
Stonfo 635 Fly Tying Thread Splitter
Brand
Stonfo
Documented details
  • Stonfo item 635
  • Thread-splitting tool
  • Finger-ring grip
  • For thread that can be split
Amazon.com reference
B00S9YGBG6

Fit and buying advice

This step creates the space for material. A bobbin holder feeds the thread and a twister or controlled rotation forms the strand afterward.

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Manufacturer documentation ↗

Questions about this tool

Does it split every tying thread?

Check a spare length first. Some threads stay tightly bonded and do not open cleanly.

Is it a bobbin threader?

It opens the tying thread itself. Use a threader to pull the thread through a bobbin tube.

When would I use a conventional dubbing loop instead?

Use a separate loop if your thread does not split cleanly or the pattern calls for more room for fibers.

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