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Availability:
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Features
- General purpose design for use in a variety of soils
- Steel blades are riveted to tough malleable iron yoke
- Steel shaft with a welded steel tee handle
- Adjustable
- Will Bore holes of varying diameters
Description
Seymour S500 industrial bores different size holes by adjusting the yolk. Yoke locked into position by tightening Yoke locking bolt. Heavy Gauge alloy steel blades riveted to malleable iron adjustable yoke. Steel tee welded to 3/4 in. Diameter, high-tensile, steel tubular shaft. Boring sizes: 6 in., 7 in., & 8 in. Overall dimensions: 21 in. W. X 46.5 in. H. X 3/4 in. Dia. Digging post holes has never been easier than with the Seymour adjustable auger. The 21-inch hard-maple cross handle gives you the leverage you need to turn the auger with ease in a variety of soils. Boring 6-, 7-, or 8-inch holes is accomplished by adjusting the yoke, which is secured into position with a locking bolt. The high-quality construction features heavy-gauge steel blades riveted to the cast-iron yoke and a steel tee welded to a high-tensile steel tubular shaft.
Product Dimensions: 6 x 4 x 46 inches
Item Weight: 7.48 pounds
Department: Unisex-Adult
Manufacturer: Seymour
Item model number: AUA2
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Friday, Sep 11
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Top Amazon Reviews
This is the only thing that has worked in my hard rock clay soil. I am using the word "soil" loosely here, because i should probably harvest this stuff and make some pottery, lol. The wetter, the better, and the clay fills the tool, and then you pull it up and dump it. It takes some muscle, but one person should be able to dig at least the length of the tool. If you add extensions, you may need help, because i would imagine it gets heavier, the deeper you dig. I am going about 24" to 30" deep. It takes about 15 min to go down 20" to 24". That is very fast, compared to the shovel. And the clam shell is useless in this clay, i didn't even bother trying that. A motor driven auger would be faster, easier, but more expensive, and i don't mind the work. I have about 20 4"x4" posts to bury. And the 8" setting is a little small, so i am using a spade shovel to expand the hole to 10" to 11" inches. This one was the biggest auger that i could easily find, but I would recommend a 10" if you can find one for post hole digging. Someone else claimed, their holes ended up being 10" wide, but for this clay, the hole is the size of the auger setting. CONS: Grass clogs it, so dig that top off first. Roots? I haven't hit any, but it's not going to go through them. Small rocks, or "rock like" clay can wedge in the end of the tool and clog it also, but you will realize, when there's no resistance. You have to push down and turn it! Sometimes pushing down harder, other times, it pulls itself into the ground. No magical rock splitting action. (Get in there with a spade shovel (works for me) or if you need the beast... use a long "chisel bar", aka "spud bar", "digging bar", sometimes called "crowbar")
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Reviewed in the United States on October 25, 2015 by Jimmy S.
The first thing i have to say is this: I like tools that are made properly and this fall right into that category. It works as designed. It is built like you would expect from something that needs to do some heavy digging. It was set to the middle position when i got it but i changed it easily to 6 inch. Before i bought this i read all the reviews and i would like to talk about a few things that stuck with me. The packaging is the first thing that i want to touch upon because somebody was saying it was flimsy. Well it is not, it is exactly what you would expect and get with any other purchase, tv or lawn mower, it's a cardboard box. If it was weak before well it is not now. The handle was in a plastic sleeve and was tied down to the auger with metal wire that would be a pain to remove by hand. The second thing is the handle. It is loose but it comes with a screw and it is tapered, so if you put it in the right way and screw it in it should be fine. In my case i had to dig some holes next to an existing fence and being able to pull the handle out when hitting the fence worked out. I am likely just going to use some tape to make sure that it stays in place so i can remove it if needed. Now don't get me wrong this thing requires some muscle but like i already said, it works. Every time you pull it out you get a 6 inch diameter by 8 inch cilinder of dirt. I would say that a clamshell post digger is like a pinch and this auger is like a fistful. Not that is it perfect but it is close for a manual auger. It does have issues with stones and roots but that is to be expected. Where i am we have a lot of clay and this thing just eats it up. If i start the hole with a clamshell and then use the auger i can do one in about 15 min and 4 feet deep if i don't run into root and stones. The second one might take a little longer. So this is an exercise machine also. I am going to upload some pictures also, I hate it when there are no good pictures.
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Reviewed in the United States on April 25, 2013 by romerican
I bought this after searching for alternatives to the typical "pinching" post digger. I live in a very heavy clay soil area, that can be quite tough to deal with. This thing makes easy work of the clay down to 1 meter (as far as I dug). It worked wonderful and made setting posts so easy. The hole that was dug was so straight and uniform, that I was shocked. Each hole took about 15 minutes to dig (averaged over the course of setting 10 posts - got a bit slower as I lost energy). Doing it again, I would have added a pipe extension because once down in the ground, getting traction to turn the auger became wearing. As other reviewers have stated, roots can be a problem. A spud bar made quick work of those and I could get back to digging in under a minute at most time. I did change the bolt out on the adjustment for width to a bolt that has nylon in it. Occasionally it would work lose and this was my solution. Considering the force applied, I was really impressed by the way the adjustment worked and how well it stayed adjusted. Tips: Use a small <a href="http://www.amazon.com/gp/product/B00005YX2U/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00005YX2U&linkCode=as2&tag=iad-20">garden trowel</a><img src="http://ir-na.amazon-adsystem.com/e/ir?t=iad-20&l=as2&o=1&a=B00005YX2U" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" > to start your hole or <a href="http://www.amazon.com/gp/product/B004N8529O/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B004N8529O&linkCode=as2&tag=iad-20">Sharp Shooter Spade</a><img src="http://ir-na.amazon-adsystem.com/e/ir?t=iad-20&l=as2&o=1&a=B004N8529O" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" >. The auger has a tendency to walk a bit, so your hole might move from where you have identified you post location. Drive a stake in the ground to bang the auger on to release the dirt. This will probably only really apply to heavy clays or moist soil, but this saved some work of cleaning each load of dirt out.
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Reviewed in the United States on July 23, 2013 by AD
Bought this to help me build my first ever fence and I wasn't disappointed. This auger made the post-hole digging process very easy! Pro's: - The adjustable size was very convenient. - Much easier on your back than a clam-shell auger - very low impact. - Left very clean holes. Cons: - My posts were 4x4's, the tamping end of my digging bar was about 2-inches in diameter and I was setting the posts directly into the soil - no cement. I had stones and roots in my soil which tended to guide the auger slightly of position. After the holes were dug using the largest diameter of 8-inches, if I needed to adjust the position of the 4x4 post just slightly off-center inside the hole there wasn't always enough room on all sides of the post to tamp down the earth; I had to use the digging end of the digging bar to widen the hole in these cases to create the additional room to tamp down the soil. A larger diameter would have helped avoid this problem (as would the absence of stones and roots from my soil) - The soil in my garden was very loose and dry. When removing the soil from the hole, the auger itself could not scoop out much of the soil and I had to get in there to scoop with my hands and a small trowel. The cons didn't really hinder my progress all that much but they were there. Overall, I was very happy with this purchase. The digging and tamping bar that I used was the following: http://www.amazon.com/gp/product/B000VACVPG/ref=cm_cr_ryp_prd_ttl_sol_12
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Reviewed in the United States on April 16, 2014 by RectusRat
I highly recommend getting this auger if you are going to be putting in a new fence or planting perennials in really bad soil like ours which below about 3 inches is almost entirely clay. I used this auger to dig the post holes for a fence around my garden (I got tired of putting in so much work, just to end up most of it going to feed the deer). I live where post holes need to be 3 feet deep to get below the frost line. It is simply not possible to dig this deep with regular pivoting post hole diggers without making the post hole cone shaped with the width of the hole far wider at the top than necessary to allow enough clearance for the handles to get far enough apart to grip the loose soil. As a result you dig out a lot more dirt than necessary. And it requires a lot more concrete, rammed paver base, or expanding foam to set the post than a post hole with the same diameter all of the way down. Using an auger like this one, on the other hand, is amazingly easy with the resulting hole having a constant diameter from top to bottom. No more frustration of trying to pull up the loose dirt as you get deeper only to have it dribble back into the hole because you couldn't get the handles of the post hole digger far enough apart. With this auger you just screw it into the ground until it is full, pull it up and gently tap it sideways to loosen the dirt so it falls out. The dirt stays in the auger because it is being compacted into the cavity as it is drilling down through the soil. However, if the soil is so sandy that it won't pack together, then it maybe difficult to keep the dirt from falling out as you try to raise out of the hole to empty it. However the same would be the case with standard post hole diggers. Wetting the soil before and maybe even while digging might help. This auger is adjustable to dig holes between 4 and 8 inches. The only issue I had is that the post hole for a 4x4 post should really be 10 inches in diameter. This is especially the case when using compacted paver base (aggregate with sharp edge stone from sand up to about 1/2") instead of concrete like I did. With paver base you need to be able to use something with more weight behind it than just a wooden dowel or broom handle, such as a metal bar with a mushroom cap on one end (aka a "wrecking bar") to firmly compact it. If the hole is only 8 inches wide it is very hard if not impossible to have enough room on all sides and especially the corners get a tamper down on all sides. The simple solution is to use the auger to dig out to 8 inches and then using straight blade tool like an ice scraper or your old conventional post hole digger, shave the sides down to increase the diameter to 10 inches. The auger can still be used to pull up this loose soil from the bottom of the hole. I recommend going to about half the depth with the auger, then shaving the sides, then augering the second half and shave the sides rather than going the full depth with just the auger and then shaving the sides back to avoid having to lift all of the dirt from shaving the side the full depth of the hole. The only issues I had with this auger was because of my wet clay soil, the number and size of rocks mixed with the clay and because I was digging post holes where a huge maple had been cut down about 5 years previous. It was harder to get the clay to come out of the auger than it would have been with post hole diggers. But I quickly learned that tapping it on the ground on one side, then turning and tapping it on the other the other side loosened it enough that I could give a good shake and the dirt would fall out. When I would hit a rock larger than about an inch that extended into the wall of hole, I would have to stop and dig it out before I go go on. But that is likely not any different than what would be required with standard post hole diggers. But I would have to stop and cut roots with my sharpened ice scraper that a standard post hole digger would likely have been able to slice through. I have also used this auger to dig holes for a number of perennials like roses and other plants that come in 2 or so gallon pots. This might seem like overkill, but with our high clay soil, it is almost like we are putting these plants in clay pots buried in the ground. The result is that they basically grow in whatever soil we added when planting them. So instead of digging a hole just large enough to fit the pot the plant came in with a little extra around and below it as you would if the basic soil was decent, I dug a much deeper hole than normal and then filled it with good dirt. The roses we planted when I did this are so much healthier and fuller than those we planted before I got this auger.
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Reviewed in the United States on January 12, 2023 by RocketMan1969
For digging post holes, compared to a shovel or a clam shell digger, this auger saves time and energy. I live in a river valley in upstate New York, so while I have a good bit of topsoil, I also have a 4 foot deep frost line. I wanted to put 16 posts in my garden for a more permanent fence and trellis project. This auger chewed through the topsoil like it was fluff. Once I hit the clay, the basket weighed more when I lifted it, but it still bit in at a good rate. Since I could adjust the head to cut just a little bigger than my posts, the auger turned a two person job into a one man job. Digging the smallest setting, I averaged about a foot every 2 minutes. That includes the time spent breaking up rocks. It takes practice to dig a straight sided wall, and getting the dirt out of the basket almost requires a stick. With this model being adjustable, I expected it to be a little less sturdy, and maybe fragile. That is most certainly not the case. This tool is built to be used, and to run into rocks. Which is good because I hit a lot of rocks that didn't move till I got out my digging bar. I dug holes, set posts and tamped the dirt for 16 posts in 2 afternoons with no help. I say it's worth the money because it cut the job in half compared to my shovel, and (spreading the purchase price) it cost me $3.60 per hole.
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Reviewed in the United States on May 24, 2014 by Frank W.
Does not cut well in clay soil and the adjustable size makes it poorly optimizedfor cutting all sizes. My friend has an old dirt auger that cuts 8" holes several times faster then this. The thin metal chatters and the tapered angle creates more cut surface requiring significant more effort - feels like you are reaming instead of cutting. If you are already spending this much money, you are better off going with a non-adjustable cutter.
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Reviewed in the United States on July 2, 2026 by Ryan
This was used to dig post holes for 2 3/8" metal fence posts down to roughly 24". I kept it at the 7" (middle) setting, but going down to 6" would have been just fine. Though it takes longer than a powered auger, you have much less chance of this thing ripping your arms off! (if you have used a gasoline powered auger you know just what I mean!) Pros: Runs about the same price as renting a gasoline auger, but you get to keep this for future projects! Very sturdy and cuts a nice clean hole. Barring large rocks getting in the way, post holes can be dug to 24" in a matter of minutes. Cons: The handle attachment method is rather poor. You slide the handle in one side until it fits snugly in the metal sleeve (the wood is tapered). Then you drive in a small (3/4" or so) wood screw to keep it from sliding out. In my case, the handle went well past 50% before fitting snugly in the sleeve, then the screw kept loosening in the hole, allowing the handle to develop a distracting amount of play. It still got the job done, but was not ideal. I plan to replace the screw with a larger one and perhaps add some shims to improve the fit of the handle. Larger rocks and leftover cement (from previous posts) really throw a wrench in the works! Plan to spend some time removing these if you have them in your soil. More physical labor required than with a powered auger. I gave this five stars despite the cons since they were expected. The premium you pay for this over a scissor-type post hole digger is WELL worth it!
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Reviewed in the United States on September 20, 2014 by J. Dennis