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Stanley 85-721 3/8-Inch Drive 6-Point Professional Grade Spark Plug Socket Set, 3-Piece

by Stanley

Price: $11.94 & FREE Shipping on orders over $35. Details
In Stock.
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  • Stanley Sockets feature our Max-Drive design, a unique radius corner design which provides 15-Percent more torque, making it easy to tighten fasteners and simplifies the turning of rounded corners
  • Helps reduce fastener wear without contact on outer 5-Percent of fastener, so fasteners last longer
  • Helps reduce slippage on frozen or rusted fasteners
  • Limited Lifetime Warranty
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Frequently Bought Together

Stanley 85-721 3/8-Inch Drive 6-Point Professional Grade Spark Plug Socket Set, 3-Piece + Permatex 81343 Anti-Seize Lubricant, 1 oz. Tube
Price for both: $15.83

Buy the selected items together


Product Information

Technical Details
Part Number 85-721
Item Weight1 pounds
Product Dimensions11.7 x 7.5 x 3.6 inches
OriginTaiwan
Item model number85-721
ColorSilver metallic
Item Package Quantity1
Warranty DescriptionStanley warrants this product to the original purchaser for its useful life against deficiencies in material and workmanship. This LIMITED LIFETIME WARRANTY does not cover products that are improperly used, abused, altered or repaired. Deficient products will be replaced or repaired.
  
Additional Information
ASINB000NIK932
Best Sellers Rank #54,021 in Home Improvement (See top 100)
Shipping Weight1 pounds (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableJuly 2, 2004
  
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Product Description

Product Description

Includes (3) 3/8-in Dr. Spark Plug Sockets - 5/8-in, 3/4-in, 13/16-in

From the Manufacturer

The Stanley 85-721 3 Piece 3/8-Inch Drive 6-Point Professional Grade Spark Plug Socket Set features our Max-Drive design, a unique radius corner design which provides 15% more torque, making it easy to tighten fasteners and simplifies the turning of rounded corners. Helps reduce fastener wear without contact on outer 5% of fastener, so fasteners last longer. Helps reduce slippage on frozen or rusted fasteners.

Customer Reviews

For my application, this worked perfectly!
Diana De Avila
The rubber grips do a decent job of picking up the spark plugs.
hotelmode
Sockets look good and seem very high quality.
D. rice

Most Helpful Customer Reviews

22 of 23 people found the following review helpful By Sean P. Logue VINE VOICE on March 17, 2008
Verified Purchase
This is a great little spark plug socket set, and includes the three most common sizes, 5/8", 3/4", and 13/16".

I have several socket sets of various sizes (and costs), some big, and some little. For some reason, every one of them includes only one size spark plug socket, 5/8".

Recently I've noticed that my small power tools, like my chainsaw, trimmer, and leaf blower are getting really hard to start. So, I decide to replace the spark plugs on them, and that's when I discover that all of the spark plugs are 3/4", much too large to work with my 5/8" sockets.

I tried the little free socket wrench that comes with most of the power tools, and it bends without taking out the plug. I guess that's what happens when you wait several years between changing the plugs. Oops!

So I go in search of the right size, and I find that most sets include two sizes: 5/8" and 13/16". Every size but the one I need, of course!

Imagine my surprise when I run across this little beauty. It includes all three sizes, and holds the socket on the walls instead of the corners (which prevents the plug from rounding off). The little plastic case they come in is handy for storage and can hang on a pegboard hook, so you'll be able to find them when you need them.

Very nice little solution to a vexing problem. Reasonably priced, too. Just try not to wait as long as I did before changing the plugs!

Sean P. Logue, 2008
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20 of 21 people found the following review helpful By tmok2000 on December 22, 2009
Verified Purchase
These are high quality spark plug sockets in the three most popular standard sizes (5/8", 3/4", and 13/16"). They are made of Chromium Vanadium (Cr-V) and have a polish chrome finish. The rubber lining inside grabs onto the ceramic portion of the spark plug tightly, and it protects it from damaging the plug. It also keeps the socket vertical while you are loosening or tightening the plug. I highly recommend these to anyone looking for high quality 3/8" drive spark plug sockets. The picture on Amazon is wrong. The largest size, the 13/16" one, looks like a 12 point socket in the picture, but it's not. All three of them are six point sockets.
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2 of 2 people found the following review helpful By RchiWaWa on July 7, 2012
Verified Purchase
The sockets themselves are of nice quality all around. They fit well over their respective plugs and are not too tight or loose, against the nut. They are fine in this sense. The problem is with the rubber boot for spark plug retention as mentioned by another reviewer. With my test plugs of all three sizes properly lubed with dielectric grease and even with my having spread some evenly inside the diameter and height of the retention boot, it came out of the socket and remained on the spark plug each plug, socket, and time I tried. I used a general purpose silicone as an adhesive to effect a permanence of the retention boot inside of the socket and after it cured (with no abrasion to the boot or socket) it, as of now, retains the plug despite how snug the fit is over any spark plug. This leave an operator no doubt when installing a spark plug into a deep well or otherwise that the plug is straight and I feel will minimize the possibility of cross threading the head into which the plug is being installed. Much tighter than my Craftsman set which did not require silicon adhesive to retain the boot in the socket but also allowed enough play to make me wonder about the possibility of cross threading my engine because of the sloppiness. These aren't perfect but are enough of an improvement over my old stock so as to be keepers in my tool box.
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6 of 8 people found the following review helpful By K. J. Bessenbacher on September 29, 2011
Verified Purchase
The only beef I have with this set is the retention rubber. It does an excellent job of grabbing the head of the plug, but the rubber tends to stay with the plug, not the socket. This is no big deal unless you have an engine with deep cylindrical spark plug shafts where no needle-nose pliers can reach (like my 2001 Toyota Tundra). And obviously this is only a problem when installing the plugs.

However, I was able to solve this problem with a little Henkel 235522 Loctite 0.2-Ounce Tite'n Nuts and Bolts Locker. I'm sure epoxy would probably work, too, but I didn't have any handy. It was solid after about 10 minutes (I was antsy to get my plugs changed), and the rubber has since never come out.

Great quality, but 4 stars for the need for glue.
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1 of 1 people found the following review helpful By Diana De Avila TOP 1000 REVIEWERVINE VOICE on June 14, 2010
Verified Purchase
I was working on my lawnmower getting it ready for the new season and realized that the spark plug change required a special sized socket that I did not have in my normal socket set. I went on Amazon to find the right socket and found this Stanley set -- they were perfect. The largest one fit like a glove on the spark plug I was changing and it did not require and special socket wrench handle, I just used the one out of my normal set. The perfect amount of oomph (torque) and the spark plug change was done in 2 minutes. For my application, this worked perfectly!

Predictable Stanley quality -- good stuff, solid socket set that I think will last forever given my use. It's found a permanent spot in my tool chest.
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1 of 1 people found the following review helpful By Yakima Fernandez on February 17, 2014
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Ok...so basically, these are good spark plug sockets. And the idea behind the design is nice. These are inexpensive, and you get 3 sockets. Lets just say, i should have listened to some of the other reviews for these sockets. The rubber that is designed to hold your spark plug in place while you guide it down the tube, and then tighten it down is simply too tight. (i only tried using it once, got pissed, and found something else) I will go out on a whim and say that maybe the more you use them, the less of a death grip the rubber has on the spark plug? The problem is that once your spark plug is seated inside the rubber grip, inside your socket, it's there for good, that rubber will not let go of your spark plug. Problem? Yes, the problem comes when you've tightened your spark plug into your spark plug tube...the socket stays on the spark plug, and your ratchet and extension, whatever you are using comes off. The rubber grip on my spark plug was so tight that i had to take a screwdriver and force the spark plug out through the 3/8 drive end. Conclusion : nice idea, gripping the spark plug, so it doesn't fall down the tube, and so you don't damage it - but poorly designed.
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