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Benjamen’s recent post about swivel connectors for compressed air lines brought to mind a little sanity saver. This Dynabrade swivel connector has a similar mission but adds a degree of freedom. It can rotate about the male 1/4 in. NPT connection, and the two composite sections can twist relative to one another. When I used this it was with a very light self-coiling hose, and even that was enough to pull the connector straight downwards. When you’re working above something, that can be a problem, but getting the hose out of the way is a simple matter of throwing it over your shoulder. In nearly every other situation, leaving the hose free to rotate is a boon.

The Dynabrade swivel is more flexible than many other options, with a 1/4 in. NPT male connection on one end, and 1/4 in. NPT female port on the other so you can hook up any air hose coupler you like. They retail for $15 apiece from Production Tool Supply and Dynabrade themselves, or $12 apiece from ToolTopia.com.

1/4in Dynaswivel [Dynabrade]
1/4in Dynaswivel [Production Tool Supply]
1/4in Dynaswivel [ToolTopia]

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4 Responses to Extra-Flexible Flex Joint

  1. Toolaremia says:

    I pointed these out in my comment on that last post. They are available from Harbor Freight for $5 and work great.

  2. Pencilneck says:

    Avoid ones made of plastic. I have a Blue Point version that I’ve been using for 4-ish years. Shortly after I purchased mine, some co workers got some plastic versions off another tool truck for half the price and they would last about 1 month before they would start to leak and blow the o ring out, then just crack apart.

    I hate using a shop hose that lack one of these flex joints on them now.

  3. MeasureOnceCutTwice says:

    This is the style I’ve always used, and I love them. It really feels awkward to use a tool without these now.

  4. Joshua says:

    Learn it from me. ONLY buy these for you air lines. NOT each and every single one of your air tools… I could have saved some money…

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