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4 Point Sockets, Lifesaver for pipe plugs

BarrelRoll

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Jan 10, 2006
Messages
415
Location
Alaska
A while back at work I encountered a pretty well mangled male 4 point pipe plug from people putting chanellocks and adjustable wrenches on it at on odd angle. I was able to pound a 12 point on and got lucky. I picked up a set of Grey Pneumatic 3/8" drive 4 point sockets and a set of Sunex 4 point 1/2" drive sockets, both impact style after that. The original pipe plug I bought them for has been replaced and mangled several times since though writing the correct 12 point socket size on the side of the machine helped. The 4 point socket has pulled it out every time it's been mangled since. Last night I was changing oil on a pump that had never had the plug out in the 3 years it's been on line. It was go home day so if something is going to go wrong it will. It was a bit of an odd angle, I tried the usual 8" adjustable wrench, no luck, went to the 15" adjustable wrench and could feel I was dancing with the devil. I decided to drive the 10 minutes to my tool box grab my pipe sockets and a long flex head ratchet. Wahlah it came right out. These were one of those tools I wasn't sure I was going to get much use out of them. Now if I know I'm going to have to pull male 4 point pipe plugs I grab them every time. A 12 point socket or adjustable wrench works though when dealing with rusty plugs covered in mine goo I feel much better hanging on a 24" ratchet with a 4 point than a 12 point. I haven't encountered any of the female 4 point plugs to use the male sockets though would feel better pounding one of these in a rusty axle fill plug than a nice ratchet or extension. I just figured I'd share my experiance as these are something that aren't in everyone's tool box.

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driftpin

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Dec 22, 2016
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11,304
Location
Miami-Dade/Broward Co. Florida
I use four point 1/4" & 5/16" female 3/8" drive sockets for various uses, the 1/4" for tapping a steering knuckle pair of mounting holes on an expensive dropped spindle for a classic car recently. For the price they charge, you'd expect you wouldn't need to chase the threads to make them work. But the four point 1/4" socket made the job much easier and saved having to disassemble things further.
 

Chrome Vanadium Cody

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Jul 25, 2021
Messages
663
Wright still makes these, nice too, have picked up a couple for situations where reefing on an 8pt socket starts to feel questionable.
 
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BarrelRoll

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Joined
Jan 10, 2006
Messages
415
Location
Alaska
I use four point 1/4" & 5/16" female 3/8" drive sockets for various uses, the 1/4" for tapping a steering knuckle pair of mounting holes on an expensive dropped spindle for a classic car recently. For the price they charge, you'd expect you wouldn't need to chase the threads to make them work. But the four point 1/4" socket made the job much easier and saved having to disassemble things further.

I prefer my Lisle tap sockets for taps, they have an o-ring in them to keep the tap in the socket though a 4 pointer would work.
 

ecotec

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Joined
Oct 5, 2010
Messages
5,469
I use a 3/8” to 1/2” socket adapter on pipe plugs for explosion proof electrical fittings (paint booths, paint mixing rooms…). I carry this adapter just for this situation.

Maybe I should buy the correct pipe plug socket for this.

I have yet to run into any metric on electrical pipe plugs.
 
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johninct

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Dec 21, 2010
Messages
2,598
I use a 3/8” to 1/2” socket adapter on pipe plugs for explosion proof electrical fittings (paint booths, paint mixing rooms…). I carry this adapter just for this situation.

Maybe I should buy the correct pipe plug socket for this.

I have yet to run into any metric on electrical pipe plugs.
I have noticed that some of the square part sticking up vary a little in width so maybe a metric would give a tighter fit.
 

cherrybomb

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Oct 18, 2016
Messages
893
Location
Near Madison Wi.
Oh so nice,to have the right tool for the job,especially working with those that don't. Maybe you can school your foreman and others you work with,you've learned a valuable wrenching technique, thanks.I have Blackhawk and Williams 8 point,they also work very well,Anybody that uses a open end,12 point or adjustible wrench on a square is taking a gamble.IMO.
 
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WWheeler

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Jun 23, 2015
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4,105
Location
Middleofnowhere USA
One of my pet peeves. Is the person who tries to remove female plugs with a 3/8 inch ratchet, when they are mostly 10mm

I don't recall running into a female square plug yet but if I have I most definitely put a ratchet or extension that looks like it fit into it.
3/8" is 9.5mm so I don't suppose it would be a noticeable difference in most cases.

As far as male square plugs I have 3/8" and 1/2" SAE sets of 8 point sockets and tap handles & adj tap sockets that have always worked just fine for everything I've run into so far.
 

Jim C.

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Joined
Jan 8, 2010
Messages
2,598
I can’t say that I’m a frequent user of four point sockets, but I can’t resist them either. The set in the case is Walden set #21 and the set in the foreground is Hinsdale, circle H vintage.

Jim C.
 

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BarrelRoll

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Joined
Jan 10, 2006
Messages
415
Location
Alaska
Oh so nice,to have the right tool for the job,especially working with those that don't. Maybe you can school your foreman and others you work with,you've learned a valuable wrenching technique, thanks.I have Blackhawk and Williams 8 point,they also work very well,Anybody that uses a open end,12 point or adjustible wrench on a square is taking a gamble.IMO.

Man, if you are running into a lot of those, I would convince the boss to buy a case, and leave one strapped to each machine's control box.

I'd have better luck talking to the wall. The machine in question is 100 yards and 4 flights of stairs from our tool boxes. Writing the correct 12 point socket most everyone has helped though you aren't going to fix lazy where I work.
 
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metalmagpie

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Nov 1, 2011
Messages
799
Location
Seattle
If your square head pipe plug is for 2" pipe you need a 4 point socket size 1-5/16". Anyone know where to buy one of those? I mean the square part of the plug fits a 1-5/16" open end wrench, don't know how they call out sizing on 4 point sockets.

metalmagpie
 

dscheidt

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Joined
Apr 26, 2017
Messages
2,909
If your square head pipe plug is for 2" pipe you need a 4 point socket size 1-5/16". Anyone know where to buy one of those? I mean the square part of the plug fits a 1-5/16" open end wrench, don't know how they call out sizing on 4 point sockets.

metalmagpie
4 and 8 point sockets are sized by the across flats measure of the square plug they fit.
 

metalmagpie

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Joined
Nov 1, 2011
Messages
799
Location
Seattle
Just a followup. A knowledgeable friend told me that the way they drive big nuts in industry is with a torque multiplier with 1" drive. Of course, you have to have the right socket.
 
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