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Pliers which stretch, not squeeze

parnass · 8 · 2277
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us Offline parnass

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Pliers which stretch, not squeeze
on: November 27, 2018, 09:21:25 PM
These two tools are useful for prying things apart.  First is the spring-loaded Proto 250G lock ring pliers.  It was designed to spread lock rings open, but can be used in other applications.



The second tool is the StrongHandTools Expand-O-Pliers http://stronghandtools.com/stronghandtools/products/pliers/expand-o-pliers/ .  They are available in 6-1/2 and 10 inch sizes.  The jaws spread open when you squeeze the handles.  The compound leverage design permits you to apply 500 lb or 900 lb of force, depending on the model.

 I have the smaller size version, shown below.



This Youtube video demonstrates the Expand-O-Pliers in action: https://www.youtube.com/watch?v=c9IyGZ8MYAQ&feature=youtu.be
« Last Edit: November 27, 2018, 09:24:23 PM by parnass »
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no Offline Vidar

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Re: Pliers which stretch, not squeeze
Reply #1 on: November 27, 2018, 09:27:02 PM
That welding expander is an interesting one. I've typically used lazy machinist jacks (long nut and bolt) or reversed sliding arm or cantilever clamps for expanding needs. I'll have an eye out for that one.  :cheers:
« Last Edit: November 27, 2018, 09:29:05 PM by Vidar »
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us Online SteveC

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Re: Pliers which stretch, not squeeze
Reply #2 on: November 27, 2018, 09:34:16 PM
I can think of as few times those expando pliers would have been just the ticket    :like: :tu:
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us Offline smiller43147

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Re: Pliers which stretch, not squeeze
Reply #3 on: November 28, 2018, 02:35:53 AM
This pair of snap ring pliers can stretch (for external) as configured in the top photo,
or squeeze (for internal) as configured in the bottom photo.
SnapRing - 1 (1).jpg
* SnapRing - 1 (1).jpg (Filesize: 20.74 KB)
SnapRing - 1.jpg
* SnapRing - 1.jpg (Filesize: 37.9 KB)
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us Offline gerleatherberman

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Re: Pliers which stretch, not squeeze
Reply #4 on: November 28, 2018, 02:43:59 AM
Worth every penny. I used one set of these for four years before I needed to replace them. I could spread any size/strength split link chain for hanging chandeliers. I keep a set in my work bag and home toolbox.

https://www.amazon.com/gp/aw/d/B000V54MX0?psc=1&ref=yo_pop_mb_pd_title

A set can be ground down a bit for splitting other things.  :)
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us Offline Yadda

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Re: Pliers which stretch, not squeeze
Reply #5 on: November 28, 2018, 04:24:19 AM
Plierench has a jaw that can be inserted backwards to work as a spreader.
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tr Offline ddogu

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Re: Pliers which stretch, not squeeze
Reply #6 on: November 28, 2018, 08:53:40 AM
Quote from: parnass on November 27, 2018, 09:21:25 PM


(Image removed from quote.)

This Youtube video demonstrates the Expand-O-Pliers in action: https://www.youtube.com/watch?v=c9IyGZ8MYAQ&feature=youtu.be


This thing is... Complicated...  :think: :think: :think:
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no Offline Vidar

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Re: Pliers which stretch, not squeeze
Reply #7 on: November 28, 2018, 05:18:17 PM
Quote from: smiller43147 on November 28, 2018, 02:35:53 AM
This pair of snap ring pliers can stretch (for external) as configured in the top photo,
or squeeze (for internal) as configured in the bottom photo.

Great concept :)  :like:
"Simple is hard"
"Hard is hard too"
(Partial disclosure: I design tools for a living).
Merit Badges Start a new thread and post a photo of any gear for thirty (30) consecutive days during the MTo anniversary month.

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