10PC Green Upgraded Concrete Drill Bit

[Size: 1/4 in, Color: Green, Number of Items: 10]
They worked fine, as good as name brands. They seem durable and come sharp enough. They definitely drilled quickly and seem to be a great value.

[Size: 5/16 in, Color: Green, Number of Items: 10]
This is a useful set to have on hand if you regularly work with masonry, tile, wood, or similar materials. You receive 10 of the same 5/16-inch bit, which makes sense for someone who uses this size frequently and does not want to replace an entire assorted set whenever one bit wears down.The crooked carbide tip is sharp and designed to hold its position instead of immediately skating across a smooth surface. I also appreciate the hex-shaped shank because it gives the drill a more secure grip than a traditional round shank and helps keep the bit from slipping inside the chuck.The grooves along the bits are wide enough to help move dust and debris away from the drilling area. They also come in a compact storage case, so all 10 stay together instead of disappearing into the bottom of a toolbox.What I liked:Includes 10 commonly sized 5/16-inch bitsSharp carbide tipsCrooked head helps with positioningHex shank provides a secure gripWide grooves help clear debrisStorage case keeps the set organizedSuitable for several common materialsFinal thoughts:This is a practical, well-organized set for anyone who frequently uses a 5/16-inch masonry-style bit. The secure hex shank and pointed crooked-head design are the standout features for me. You get plenty of replacement bits for the price, and the included case makes them easy to store and carry.

[Size: 3/16 in, Color: Green, Number of Items: 10, Size: 3/16 in, Color: Green, Number of Items: 10]
This is a ten piece set of drill bits the same size. These are 3/16 of an inch and come in the green shade.They are masonry bits. Easy to use and strong bits that will assist you with your projects.They fit well and work as needed. The precision is on point and the hold speed well.I do wish they had cover on different sizes as i have many projects to accomplish.The value was okay. I probably would not have purchased 10 of the same size. I did order another package in the 1/4 inch to make sure I have the right size for my projects.Otherwise they are durable well made bits. They work for various mediums such as tile and glass.Looking forward to getting things done.

[Size: 1/4 in, Color: Green, Number of Items: 10, Size: 1/4 in, Color: Green, Number of Items: 10]
These are nice masonry bits. The tip profile is different than what I'm used to see on masonry bit, it's more pointy. It worked great drilling holes in concrete paver, able to drill holes quick and smooth. The green coating wear off immediately as expected but the bit itself is still good shape after ~ 15 holes. Then I tried it on a rock (not sure what kind of rock it was), I was able to drill one hole before the tip wear out, so doable, just won't last long for hard rock, maybe I should have used water to cool it down on harder material to improve durability. They're versatile enough to use on different materials. The bits are 102mm (~ 4 inches) in total length, the cutting section is 2.5 inches, but I suppose you could wiggle it around to make the hole bigger and drill deeper than 2.5 inches if needed. Pricing wise, it's pretty cheap for 10 bits, and they come in a nice plastic box for storage.

[Size: 5/16 in, Color: Green, Number of Items: 10]
These hex‑shank masonry bits are very well made, and the cutting head has a noticeably steeper angle than the typical carbide tips I’ve used in the past. Combined with the eccentric head geometry, they perform exceptionally well in brick, concrete, and concrete block. In a hammer drill they cut fast, stay stable, and clear dust efficiently — exactly what you want for those materials.There are a few caveats, though.First, it’s a pet peeve of mine when sellers advertise metric tools in Imperial inches. “Close” is not the same as “correct,” and with concrete screws the hole size matters a lot. Being off by even a fraction can mean poor bite or premature failure. If you need a precise diameter for anchors or fasteners, double‑check the actual metric size rather than relying on the inch conversion.Second, the product description claims these bits work on “Plastic Glass Brick Cement Tile Marble Wood.” Plastic and wood are just silly — no one should be using an eccentric‑head masonry bit for those materials. As for tile, glass, and marble: yes, you can make a hole in a pinch, but these bits are optimized for brittle aggregates like concrete, block, and brick. The aggressive, off‑center cutting action that makes them great in masonry also increases the risk of cracking, skating, or chipping on smooth, dense surfaces. For tile or glass, a proper spear‑point or diamond bit is the right tool.All that said, for their intended purpose — drilling masonry — these are a very economical option. They perform well and cost far less than big‑box brands, making them a solid value if you use them where they truly shine.

[Size: 1/4 in, Color: Green, Number of Items: 10, Size: 1/4 in, Color: Green, Number of Items: 10]
The 10-piece concrete drill bits in the 1/4 inch size have proved to be a very good set. I had a chance to try them in a variety of applications. The set comes in a nice storage box. They have a green pearlescent finish which is a pretty neat feature even if it doesn’t have anything to do with the function of the bits.I used one of the bits with a standard drill on 3 common items in order of difficulty, based on my past experiences. The first round of testing was on a common concrete paver. The drill bit quickly cut through the paver without a problem.After that, I tested the bit on a 4-inch-thick concrete patio that’s over 55 years old and contains ¾ inch aggregate. As I drilled, the bit slowed down when it hit the larger pieces of aggregate, but it was still able to push through and complete the hole.Finally, I used the bit to drill a hole in the bottom of a thick ceramic planter pot. I was really surprised at how well the bits performed on the ceramic. I used a slow speed, constant pressure, and water for cooling. The resulting hole was unexpectedly smooth and clean. The description reads, "Size: 1/4 inch (6mm)." So, which is it? I measured all of the bits and found a variety of diameters, but all fell within the range of 6mm and 1/4 inch. That is, between .236" and .250". The holes that resulted from my tests were just big enough for a 5/64" (0.234") pin. Overall, it’s not an issue for me.The only visible wear was that the bit lost some of its green paint but other than that there was no damage. In the end, the bit performed very well in all three tests and I’m very happy with the set.

[Size: 5/16 in, Color: Green, Number of Items: 10]
I’ve used my fair share of concrete bits over the years, and these Mgtgbao 5/16" ones definitely stand out from the typical set.First thing that caught my attention was the green coating — not just for looks, it actually makes them easier to spot in a crowded toolbox. But the real difference is that slightly crooked/eccentric head design. I wasn’t sure what to expect at first, but it actually bites into the concrete quicker than standard straight tips. I noticed less wandering when starting holes, which is usually my biggest annoyance when working on tougher surfaces.I put these to work on some older, pretty dense concrete around my property, and they handled it better than I expected. They stay cooler than some of my older bits, and I didn’t feel like I had to lean into the drill as much to keep progress going. The 8mm size is spot-on for anchors, and the holes came out clean without excessive chipping around the edges.Durability seems solid so far. I’ve run through a handful of holes already, and they’re still cutting clean without that dull drag feeling you get when cheaper bits start to give out. The shank fits snug in my hammer drill, no slipping or wobble, which is always a plus.I also like that you get a full 10-pack — it’s nice not having to baby each bit or stop mid-project because one wore out. For the price point, it’s a really practical set to keep on hand whether you're doing occasional home projects or more regular work.If I had to pick one small downside, it’s just that dust still builds up pretty quickly in deeper holes, so you’ll want to back the bit out occasionally to clear it — but that’s pretty standard for concrete drilling anyway.Overall, these ended up being a surprisingly dependable set. Good grip, solid performance, and they’ve held up well so far.

[Size: 3/16 in, Color: Green, Number of Items: 10]
Vine Customer Review of Free ProductI received the Mgtgbao 10PC Green 3/16 inch Upgraded Concrete Drill Bit Set for free through Amazon Vine, and I’ve been genuinely impressed with their performance.What I liked:Build quality: These bits feel solid and well-made. The green coating looks premium and seems to help with heat dissipation and corrosion resistance. After drilling into concrete, brick, and tile, they still look nearly new with minimal wear.Eccentric “crooked” head design: I was skeptical about the special angled/crooked tip at first, but it actually works really well. It bites into hard materials faster and seems to reduce wandering compared to standard straight masonry bits. It pulled out clean chips instead of just grinding.Versatility: These handled everything the listing claimed — concrete block, hard-fired brick, ceramic tile, marble, glass (with care), wood, and even some plastic. The 3/16" (≈5mm) size is very useful for common tasks like installing anchors, shelf brackets, and light fixtures.Value: Getting 10 identical bits means I don’t have to worry about burning through my only good bit on a tough job. Great for contractors or serious DIYers.Performance notes:Drilled into cured concrete and brick very efficiently with a standard hammer drill.On tile and marble they worked cleanly with light pressure and water (highly recommended for glass/tile to prevent cracking).No excessive vibration or bit walking on smooth surfaces.Minor notes:They’re still carbide-tipped masonry bits, so very hard materials like high-strength concrete or rebar will eventually wear them down like any other bit. Use proper technique and you’ll get great life out of them.Bottom line: This is one of the better value masonry bit sets I’ve tried. The upgraded eccentric head actually makes a noticeable difference in speed and control. I’d happily buy these again at full price and recommend them to anyone who regularly works with concrete, brick, or tile.Solid 5-star set.