K-Brands Auger Drill Bit for Planting 2 Pack 1.6 x 16 Inch & 3.5 x 16 Inch Set – Garden Spiral Hole and Bulb Planter Tool for Umbrella Holes - Compatible with 3/8 Inch Hex Drive

These are very well made and sturdy. I used the smaller of the two sizes with a 20v DeWalt cordless drill, which is a very powerful drill. I used the bit to plant in tough North Texas soil, which is less like soil and more like rock-filled clay - the most difficult substance one can imagine to plant in, aside from concrete. This auger made the job easier, I was able to break up this impossible soil and remove the excess dirt with a shovel. It’s a nearly impossible job otherwise. I made three large holes to plant shrubs that came in 2 gallon buckets, so the holes were about 18” in diameter and maybe 14” deep, leaving plenty of room to add good soil around the new plants.One thing to note, when you hit rocks or roots or just tough sticky clay, the drill will kick back with considerable force, and I’ve got a sore shoulder and wrists from that. After a while you learn to be less aggressive with the drilling and take smaller bites to avoid injury. If your drill has a two-speed gearbox, use the lower, higher torque setting, especially in tough soils, but please use caution!In all, this is a great tool that makes the difficult job of digging in tough earth much easier.

It's worked well so far for 4x4 or 6x6 fence post repairs where I need to get a good sized hole started with minimal tools. A post hole digger can optionally be used alongside this to make your life a bit easier getting residual dirt out of the hole.This makes much quicker work than a post hole digger alone does though and is easily worth the cost to me.I've ground up against rocks and even a large brick - the black coating rubs off but I was surprised to see how smoothly the metal resisted the scratching. It didn't dent or deform.The hex tip is also large and strong and hasn't worn or slipped yet. Just make sure you click the chuck tight around it and be gentle.Lastly, using these can be hard or even dangerous on your wrists, especially with 20V drills set to max torque (usually setting 2 on drill mode on your drill) so do be cautious of how you are holding this. It helps a lot to have some bracing or to brace the drill battery between your knees. If you can't do this, try to hold it in a way that will prevent it from bucking and twisting your wrist unexpectedly. Start at low torque and work your way up.

Good quality. Went easily onto my older battery operated Makita drill. Drilled about 30 5 to 6 inch deep holes for vegetable planting. Did pretty good with the hard soil struggling after about 6inches. Except for that and the paint coming off the very tip of the bit it worked fairly well.

What is there to say about this product other than it does the job as advertised by the seller? I don’t use the larger of the auger bits because the small one is enough to bust up the hard clay dirt when I’m digging a hole to plant flowers and a lot of other plants. It’s effective at mixing up the garden soil with potting soil and other organic matter for a healthy garden. Plus, I don’t think that it’s a good idea to use the larger auger bit with the battery operated drill that I have now. I’m concerned that it might burn out the motor in the drill.

I bought some fruit trees that I needed to plant. The combination of hard clay soil and a bad shoulder injury really had me wondering if I was gonna be able to do it. I used the smaller auger to break up the dirt very easily. I had no problem at all using it even with my bad shoulder. Then I used the bigger one to make the hole a little bit larger. After that, it was easy to just shovel out the loose dirt. This is a must have for anyone who has clay soil.

I purchased a similar item from ANOTHER company and the hex shank that goes into the drill snapped off. This one looks like there is additional welding done to reinforce the shank. I drill six holes in the same soil where the other one broke. Very with this bit.

These drill bits dig into soil but then get stuck there. Switching back and forth between forward and reverse will remove the bit from the soil, but it does not remove soil or leave a hole. Also, small bit is too small for planting bulbs and big bit is too big for bulbs and too small for planting flowers. I purchase these bits to plant bulbs and flowers but quickly reverted to just a spade and trowel. Three stars for good customer service.

I have only used these once so far but they worked great. I am putting in deer fence using metal poles and wire fence. Making the post holes was fast, once I got the hang of it. It will clear out smaller rocks just fine. They are built sturdy so I expect them to last.