SDS Max – The SDS Max are also designed to be used specifically with SDS Max Rotary Hammers. The only difference between these two types of bits are that the SDS Plus shank is simply an upgraded version of the SDS shank. SDS/ SDS Plus – Both of these types of drill bits are actually interchangeable and are only designed to work in an SDS or SDS Plus Rotary Hammer Drill. It is important to make sure that you know the chuck system that your drill uses in order to pick out the right shank for your drill. There are a few different types of concrete drill bit shanks based on the drill that you are going to be using when you’re drilling concrete. If you are drilling brick or mortar the 2-flute bit will work just fine. With that said, whenever possible it is best to use a masonry drill bit with 4-flutes rather than 2 if you’re drilling concrete. The 4-flute design also helps the bit to not get stuck as easily and it is less likely to get hung up on rebar. A 4-flute bit will allow you to drill faster, more efficiently and wear your bit less. The 4-flute concrete drill bits are an upgraded design of the 2-flute bits. In the image to the left you will notice that the 4-flute tip has a plus or cross design on the tip. To expand a little further on the carbide tips there are two different types of flutes that you will find on a concrete drill bit known as the 2-flute and 4-flute tips. What Is The Best Drill Bit For Concrete?Īs with any other materials such as wood, or metal, concrete also requires a special kind of drill bit in order to be able to punch a hole through it. If you want to see how a regular hammer drill and a rotary hammer drill compare to one another check out the video above. If I was to only own one rotary hammer, it would certainly be any of the Bosch Bulldogs. And I’ve also found that they typically outperform their direct competitors as well. They’re typically smaller and lightweight, compared to their direct competitors. I have used many different brands and sizes of rotary hammers and honestly I can say that I have never found any rotary hammers to work quite like Bosch Bulldog Series. Where a regular hammer drill uses a disc mechanism, a rotary hammer uses 2 pistons (fly piston & drive piston) paired with a little air pressure to deliver a more powerful force of impact.ĭepending on the size of holes that you are looking to drill, rotary hammer drills come in many different shapes and sizes but for most people the Bosch Bulldog 11255VSR would be my #1 pick for sure. Rotary hammer drills are typically larger than your average hammer drill and the hammering mechanisms are actually quite different as well. With that said if you are serious about punching some holes through concrete, the best drill to use for concrete is a rotary hammer drill. You can typically expect a good hammer drill to be able to drill the occasional hole up to 3/8″ in diameter, but anything more than that will certainly require a rotary hammer drill. It uses a two jagged discs (illustrated below) to drive the drill bit back and forth into the concrete causing the hammer drill to hammer the concrete and pulverize it while it spins.Ī regular hammer drill will work perfectly for most people who are looking to drill a handful of holes into concrete. Hammer Drill – A hammer drill is is designed to deliver impact in the same way that you would expect a hammer to deliver impact. But unfortunately this is not the case, a hammer drill and an impact drill are very different in the way they deliver their “impact”. With that said, these same people would obviously assume that they would work the same to drill a hole into concrete. Most people think that an impact drill and a hammer drill are very similar in the way that they operate. The Difference Between An Impact Drill & A Hammer Drill See the video below for a great demonstration of how much you can expect to struggle by using an impact drill for concrete. That is not to say that you absolutely cannot use an impact drill for concrete, but if you do, I would hope that you have lots of time on your hands and some really good hex shank masonry bits. ![]() Due to the hard density of concrete you’ll either need a hammer drill or the best tool to use for drilling concrete is a rotary hammer drill. No, an impact drill is not recommended for drilling concrete. So, can you use an impact drill for concrete? When I couldn’t avoid it and had to drill concrete I made damn sure that I had the right tools for the job to help make my life a little easier. Despite trying to avoid it though I still have to face my fears once in a while. It was the one job that I have always tried my hardest to avoid as a concrete finisher. Drilling into concrete has to be one of my least favorite jobs and I am going to guess that it is, or will be one of yours too.
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