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$ 1.95

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In stock 827 in stock
1.95 1+ units
1.76 10+ units
1.56 100+ units

Description: These plastic Flexible Coolant Pipes have been primarily used to spray refrigeration or washing fluid for machine tools but, thanks to their articulation, they can be used in a multitude of different ways as well. We use them as extra arms for our third hand.

The coolant pipes are 1ft long with a nozzle diameter of 3.5mm and ½"-20 pipe thread.

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Customer Comments

  • Can I take the end off of on and the bottom off another and attach them together to extend it?

  • Do these pipes conform to the BSPT threading standard as opposed to NPT, or do they have their own proprietary thread pitch? They don’t seem to thread into normal ¼" pipe connections.

    • I believe they are ½" - 20. This info is not from personal use it is a comment made by another review from the store that i bought them.

      • The threads are indeed ½"-20 (UNF). I measured them with my own thread gauges and calipers. They are not pipe threads (not NPT, not BSPT).

  • OK, what size loc-line tool do I use for this? I ordered the ½" and it’s WAY too big…

Customer Reviews

4 out of 5

Based on 4 ratings:

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1 of 1 found this helpful:

Loose segment in 2 of 8 pipes

I ordered 8 of these pipes and 2 of them had a loose segment that wouldn’t stay in place. This made them not usable as helping hands.


2 of 2 found this helpful:

It's good to have extras

I ordered 2 extra pipes to augment my 3rd hand setup (TOL-11784) and they worked fine. They are a good price as long as the shipping cost is spread out over multiple products. There was a range of flexibility between the 4 pipes. Recommended.

Because these are so inexpensive, if I were king sparkfun I would have an accessory pack that included (2) 1ft pipes, (2) 6 inch pipes and (4) alligator clips and (2) 90 degree nozzles. The 6 inch pipes are useful for holding the heavy stuff or when you can’t get a tight enough bend on the longer ones.

The kit would be inexpensive enough that you wouldn’t feel bad if you didn’t need all the parts right away.


Great Item Great Price

These work great to make a nice third hand soldering set-up. Three of these, Three Aligator clips, three brass nuts, some self bonding tape, and an old large cigar box made a great soldering stand/storage unit. Now when I get one more I’ll attach a small magnifying glass to it and have really nice set-up!


I added two more arms to my sparkfun helping hands thing.

They are a little tough to deal with when putting on the aligator clips. Also, the aligator clips Sparkfun ships with their helping hands kit are too whimpy in my opinion - I got these instead http://www.digikey.com/product-detail/en/BU-60TBO/314-1095-ND/2688023