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Gear Wrench 5-Piece Ratcheting Combination Wrench Set (Metric or SAE)

$15 each
$29.99
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Advance Auto Parts has Gear Wrench 5-Piece Ratcheting Combination Wrench Set (Metric or SAE) on sale for $14.99. Select free store pickup where available, otherwise shipping is free on $35+ orders. Thanks hrmitcrb

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Created 10-16-2020 at 03:48 AM by hrmitcrb
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Joined Sep 2015
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#76
Quote from Dh3256
:
12 point is not "bad", it is actually better.

Some people mistakenly believe that a 6 point tool is less likely to "strip" the head, but that's because they don't understand how the tools work and contact the head. It really makes no difference, the contact is near the points anyway and about the same for both 6 pt and 12 pt.
just wait for the day when 12 pt. will spoil your day and possibly a week without car until you find, how to take out that stripped bolt...but best of luck until it works for you!!
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#77
Quote from spinsan
:
just wait for the day when 12 pt. will spoil your day
Can't happen, in actual fact there is no practical difference, as tests and studies prove consistently.

As a practical matter, one who works on cars in the rust belt who does not have tools and methods to deal with stripped and stuck fasteners is likely to be very frustrated. I like an angle grinder, worked great to deal with the head on caliper bracket bolts the 6-pt socket stripped last weekend.
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#78
Quote from hrmitcrb
:
many tool manufacturers and mechanics consider them interchangeable
That is not correct, tool manufacturers and mechanics do NOT consider those two sizes of tools "interchangeable".

You are welcome to you opinion, but the fact is they are different sized and not interchangeable, as the facts confirm. Not sure why you aren't getting this, but the difference between 15.875 mm and 16 mm is significant. Maybe go buy a caliper (a micrometer is the wrong tool for this measurement) and measure, then perhaps it will be obvious to you, too, why it won't work properly.
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#79
Quote from Dh3256
:
Can't happen, in actual fact there is no practical difference, as tests and studies prove consistently.

As a practical matter, one who works on cars in the rust belt who does not have tools and methods to deal with stripped and stuck fasteners is likely to be very frustrated. I like an angle grinder, worked great to deal with the head on caliper bracket bolts the 6-pt socket stripped last weekend.
as a DIY in northern Virginia, had the same issue of stripping caliper bolt because of this 12pt thing and since then I have never used any of my 12 pt. so learned from my frustration of a weekend and multiple trips to Advance auto...luckily had another spare vehicle. So any DIY, dont take chance with 12pt. if you dont have spare transportation for next day job.

6 point has much better grip on the cap head bolts as it's gripping the complete 6 sides of nut/bolt whereas 12pt is just have more force on the corners without complete side grip. so that extra grip in 6pt. make a lot of difference to avoid stripping these rusted bolts/nuts.

as a DIY I prefer to have proper tool than dealing with things that has gone wrong by remedies like torching/grinding/hammering etc. to fix the mess that could have been avoided by proper tool. but again it's individual thing, whatever works for you is good. have a good day!
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#80
Quote from hrmitcrb
:
Try any 5/8" wrench you can find, from cheap to over-priced, and it will fully fit over the 16mm bolt head. The difference is .005", which is about the thickness of a sheet of paper. Get real folks.
Totally agree. A fastener and wrench follow a standardization process, and within any standard is a built in acceptable tolerance. Therefore, a few microns or says tenths of a millimeter or hundreds of an inch will NOT make any difference.

So yes, get real folks. And truth be told, a lot people are NOT aware of this cross compatibility and this should be helpfu.

In fact, some cheaply made metric wrenches will be far worse of a a fit than say a cheaply made sae wrench of cross compatibility. Am I saying go out and but a mix of wrenches every time? NO. What I am saying is if your metric set is sold in limited sizes and you find a sae set cheap, then don't hesitate to cross use them.

For those who say blasphemy, I respect your views too. But lets not get too rigid and throw out logic.
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#81
Quote from Dh3256
:
the difference between 15.875 mm and 16 mm is significant.
Like I've said, it's a whole .005" (five one-thousandths of an inch) and equal to the thickness of a sheet of paper. So yes, the difference between 5/8 inch and 16 mm is really, really, really significant. Feel better now?
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#82
Quote from burninrubber321
:
Why's 12 point so bad? I thought it's more desirable
12pt is the way to go with these because they excel in tight situations. 6pt only would limit your range of motion and breaking bolts really shouldn't be done with a ratchet if you want them to last
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#83
Quote from spinsan
:
as a DIY in northern Virginia, had the same issue of stripping caliper bolt because of this 12pt thing and since then I have never used any of my 12 pt. so learned from my frustration of a weekend and multiple trips to Advance auto...luckily had another spare vehicle. So any DIY, dont take chance with 12pt. if you dont have spare transportation for next day job.

6 point has much better grip on the cap head bolts as it's gripping the complete 6 sides of nut/bolt whereas 12pt is just have more force on the corners without complete side grip. so that extra grip in 6pt. make a lot of difference to avoid stripping these rusted bolts/nuts.

as a DIY I prefer to have proper tool than dealing with things that has gone wrong by remedies like torching/grinding/hammering etc. to fix the mess that could have been avoided by proper tool. but again it's individual thing, whatever works for you is good. have a good day!
I never use 12pts to break bolts free but they do have a purpose when it comes to limited access. I usually break bolts free then use a 12pt ratchet to remove. When it comes down to it ratchets really shouldn't be used to break bolts free if your want them to last anyhow.
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#84
Quote from BigRedSaab
:
$13 at NAPA, and free store pickup
Link please?
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#85
Quote from spinsan
:
6 point has much better grip on the cap head bolts as it's gripping the complete 6 sides of nut/bolt whereas 12pt is just have more force on the corners without complete side grip.
Yes, that is the myth. In reality neither one contacts the side, the contact area for both sockets is essentially the same, which is why it makes no difference.

There are some studies that explain the physics and mechanics of why, if anyone is interested in learning in more depth why there is no difference between 6 pt and 12 pt.
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#86
Quote from Dh3256
:
Yes, that is the myth. In reality neither one contacts the side, the contact area for both sockets is essentially the same, which is why it makes no difference.

There are some studies that explain the physics and mechanics of why, if anyone is interested in learning in more depth why there is no difference between 6 pt and 12 pt.
I have learned my lesson and shared my own experience...being an engineer myself I do understand the mechanics of these nuts & bolts ... As I said above, it's individual preference and experience ...if it works for you that's good but be cautious with 12pt when u get past the elbow force on a cap head nut/bolts.
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#87
Quote from BruceD8050
:
I never use 12pts to break bolts free but they do have a purpose when it comes to limited access. I usually break bolts free then use a 12pt ratchet to remove. When it comes down to it ratchets really shouldn't be used to break bolts free if your want them to last anyhow.
completely agree.
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#88
Quote from spinsan
:
I have learned my lesson and shared my own experience..
That's fine, you are entitled to your opinions, but the physics and facts remain objectively true.

If you or anyone else has ever found a real study that shows any practical difference between 6 pt and 12 pt, please post it. Everything I have found confirms what every engineer knows, that there is no practical difference.

If you do want to reduce likelihood of stripping a head, a spline socket is the only type that offers any advantage, since the contact the fastener on the flats, where there is more metal, rather than at the points.
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#89
Quote from burninrubber321
:
Why's 12 point so bad? I thought it's more desirable
The point of a 12-point wrench (except for rare 12 point fasteners) is to give you more options for turning the bolt. However, the ratcheting mechanism makes that irrelevant - it's easy to find a good position for the wrench because it turns, and it doesn't matter where the handle is. For 6 point fasteners, then, you'd always want a 6 point wrench because it's stronger and less likely to round.
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#90
Quote from frogg320
:
For 6 point fasteners, then, you'd always want a 6 point wrench because it's stronger and less likely to round.
Except that is not correct, no difference between 6 and 12 point in how likely they are to round a fastener head. See prior discussion in this thread and studies to understand why that is the fact.
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