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Torque Limits #4801617
06/30/18 05:00 PM
06/30/18 05:00 PM
Joined: Oct 2017
Posts: 412
California
vavavroom Offline OP
vavavroom  Offline OP

Joined: Oct 2017
Posts: 412
California
What are the approximate torque limits for high quality sockets and ratchets in 1/4", 3/8", and 1/2"?

Re: Torque Limits [Re: vavavroom] #4801627
06/30/18 05:13 PM
06/30/18 05:13 PM
Joined: Sep 2004
Posts: 8,011
Marshfield , MA
andyd Offline
andyd  Offline

Joined: Sep 2004
Posts: 8,011
Marshfield , MA
The limiting factor isn't the socket. It is the diameter ,grade and pitch of th bolt. If you split a socket, you were abusing it.


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Torque Limits [Re: vavavroom] #4801632
06/30/18 05:17 PM
06/30/18 05:17 PM
Joined: May 2010
Posts: 9,857
out there
spasm3 Offline
spasm3  Offline

Joined: May 2010
Posts: 9,857
out there
I always use the biggest ratchet/socket combo that will fit.

Last edited by spasm3; 06/30/18 05:22 PM.

13 elantra 75k 5w30 QSUD
03 chevy avalanche 80k synpwr 5w30
17 mazda cx-5 9500 miles m1 0w30
Re: Torque Limits [Re: vavavroom] #4801652
06/30/18 05:49 PM
06/30/18 05:49 PM
Joined: Jan 2017
Posts: 2,546
VW Fanboy Island
maxdustington Offline
maxdustington  Offline

Joined: Jan 2017
Posts: 2,546
VW Fanboy Island
I think if you take 3/8 ratchet over 100ft/lbs regularly you will either break it or wear it out quickly unless it is snappy or hazet level.

1/4 50 ft/lbs?

I wouldn't go near those figures with say a SK round head or Craftsman RP. Certainly not with a cheap imported ratchet.


03 Jetta AWP/09A 205k kms
Edge 0W40 + Mann 719/30
Re: Torque Limits [Re: vavavroom] #4801667
06/30/18 06:03 PM
06/30/18 06:03 PM
Joined: Dec 2017
Posts: 1,746
US
JLTD Offline
JLTD  Offline

Joined: Dec 2017
Posts: 1,746
US
None listed that I know of. But my brother has stood on a 3/8" ratchet when working on suspension parts...with a 4' breaker bar so the answer is "more than you can supply with your hands"


I use the overseas owner's manual to choose my oil.

Using AMSOIL

Hers: 2008 Jeep Liberty 143k, SS 5w30/Amsoil

His: 2015 4Runner 51k, OE 5w30/Wix

Re: Torque Limits [Re: vavavroom] #4801673
06/30/18 06:12 PM
06/30/18 06:12 PM
Joined: Nov 2006
Posts: 21,258
MA, Mittelfranken.de
Trav Offline
Trav  Offline

Joined: Nov 2006
Posts: 21,258
MA, Mittelfranken.de
The weakest point is the square drive on the ratchet. You wont break a brand name tool using it by hand as intended, cheap tools can be another story.


ASE L1, Master. Deutsch Meisterbrief.
Re: Torque Limits [Re: maxdustington] #4801687
06/30/18 06:33 PM
06/30/18 06:33 PM
Joined: Jun 2013
Posts: 367
sw ohio
willbur Offline
willbur  Offline

Joined: Jun 2013
Posts: 367
sw ohio
Originally Posted By: maxdustington
I think if you take 3/8 ratchet over 100ft/lbs regularly you will either break it or wear it out quickly unless it is snappy or hazet level.

1/4 50 ft/lbs?

I wouldn't go near those figures with say a SK round head or Craftsman RP. Certainly not with a cheap imported ratchet.


There's some guy on YouTube that tested ratchets, including the cheap (you know the one)and top tier stuff to failure under high loads. The cheap ones were just about as good as the best. Go figure. The cheap ones are probably heavier, thicker and can't get into the tight spaces the top tier ones can. Can mean the difference between getting the job done and not. Its not just about ultimate strength.

Re: Torque Limits [Re: vavavroom] #4801770
06/30/18 08:37 PM
06/30/18 08:37 PM
Joined: Dec 2006
Posts: 1,853
NY, NY
NYEngineer Offline
NYEngineer  Offline

Joined: Dec 2006
Posts: 1,853
NY, NY
I know my 3/8 drive Snap on torque wrench goes from 10-100 lbs ft. My 1/2" goes from 40-250. I can't remember what the 1/4 and the 3/4 go to but I'd guess the 1/4 is probably up to 30 lb ft and the 3/4 is 600??

I use those ratings as a guideline.

Re: Torque Limits [Re: Trav] #4801772
06/30/18 08:39 PM
06/30/18 08:39 PM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline

Joined: Oct 2012
Posts: 4,825
Taiwan
Originally Posted By: Trav
The weakest point is the square drive on the ratchet. You wont break a brand name tool using it by hand as intended, cheap tools can be another story.


My ex-GF's father bust my HILKA ratchet NO BOTHER, and HILKA were a pretty good brand then. It failed in the mechanism and flew apart. Square drive was OK IIRC.

I don't understand this talk of "standing" on a ratchet. Suggests you're using a ratchet when you shouldn't be to me, which seems to be general practice on here.

When I don't need a ratchet I don't use one. I THINK a T-bar is a lot stronger.

Re: Torque Limits [Re: vavavroom] #4801781
06/30/18 08:46 PM
06/30/18 08:46 PM
Joined: Dec 2006
Posts: 1,853
NY, NY
NYEngineer Offline
NYEngineer  Offline

Joined: Dec 2006
Posts: 1,853
NY, NY
That's true. I usually don't break stuff loose with a ratchet. I have breaker bars in all drive sizes. I have ratchets that I've had for forty years and have only opened them up for service. The sealed Snap ons never need anything. I oil them for something to do sometimes.

Re: Torque Limits [Re: vavavroom] #4801793
06/30/18 08:54 PM
06/30/18 08:54 PM
Joined: Jun 2003
Posts: 34,077
ME
eljefino Online content
eljefino  Online Content

Joined: Jun 2003
Posts: 34,077
ME
If you stand on a ratchet you can orient it perfectly horizontal for best effect. I've put a pipe onine. A half inch square could easily do 600-700 ft lbs and that's harbor freight grade stuff.

Re: Torque Limits [Re: vavavroom] #4801824
06/30/18 09:24 PM
06/30/18 09:24 PM
Joined: May 2010
Posts: 9,857
out there
spasm3 Offline
spasm3  Offline

Joined: May 2010
Posts: 9,857
out there
I use a breaker bar, or the 30 some tooth craftsman ratchet. I have blackhawk ( 1/2 and 3/8) 72 tooth ratchets, that i use for stuff thats already broken free.


Last edited by spasm3; 06/30/18 09:24 PM.

13 elantra 75k 5w30 QSUD
03 chevy avalanche 80k synpwr 5w30
17 mazda cx-5 9500 miles m1 0w30
Re: Torque Limits [Re: vavavroom] #4801892
06/30/18 10:51 PM
06/30/18 10:51 PM
Joined: Dec 2009
Posts: 527
Jupiter, FL
thescreensavers Offline
thescreensavers  Offline

Joined: Dec 2009
Posts: 527
Jupiter, FL
You'll find in most shops tools from snap on to HF they all work great until you use them inappropriately then they break.


2017 Camaro SS 1LE (Motul 8100 X-clean 5W40)
1997 Jeep XJ 4x4 (15W40 HDEO Maxlife)
Re: Torque Limits [Re: vavavroom] #4801916
06/30/18 11:18 PM
06/30/18 11:18 PM
Joined: Jul 2003
Posts: 5,080
New Zealand
Silk Online content
Silk  Online Content

Joined: Jul 2003
Posts: 5,080
New Zealand
I've broken sockets, ratchets and powerbars at times - in the real world of everyday repair sometimes you need to step over the limits of what you have. With my Tipco 3/4 set, you can remove the ratchet head and fit the T bar...which is bent because at times I've fitted 2 metres on pipe to it. Without the bar, the ratchet is short to work like a flexhead.


1987 BMW R65 - Aegis SAE30
2005 Nissan Expert - 5W-40 Castrol Magnatec diesel.
1996 Volvo T5 - Penrite HPR15 - 15W-60. Ryco syntec filter.
Re: Torque Limits [Re: Ducked] #4802041
07/01/18 07:36 AM
07/01/18 07:36 AM
Joined: Nov 2006
Posts: 21,258
MA, Mittelfranken.de
Trav Offline
Trav  Offline

Joined: Nov 2006
Posts: 21,258
MA, Mittelfranken.de
Originally Posted By: Ducked
Originally Posted By: Trav
The weakest point is the square drive on the ratchet. You wont break a brand name tool using it by hand as intended, cheap tools can be another story.


My ex-GF's father bust my HILKA ratchet NO BOTHER, and HILKA were a pretty good brand then. It failed in the mechanism and flew apart. Square drive was OK IIRC.

I don't understand this talk of "standing" on a ratchet. Suggests you're using a ratchet when you shouldn't be to me, which seems to be general practice on here.

When I don't need a ratchet I don't use one. I THINK a T-bar is a lot stronger.


I use a ratchet as a ratchet not a breaker bar, if it needs a breaker bar that's what I use. Most of the time I use impact guns and air ratchets. Most people dont have the tool selection I have so they use what they have to get the job done which is okay too.



Edit: This is a worthwhile video but this guy uses some crude language (not for me) but if you easily offended don't watch this. Mods please remove if inappropriate but please link to it as it is informational.

Last edited by Trav; 07/01/18 07:41 AM.

ASE L1, Master. Deutsch Meisterbrief.
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