Anytime someone drills Concrete, they will reach for what they call a hammer drill. But they may be talking about two completely different tools. So, once you are looking for a cordless hammer drill, then you may wish to learn the differences. A cordless hammer drill usually resembles a traditional cordless drill with a 3 jaw chuck. Normally on the selector knob, you will notice an image of a hammer. Apparently, this is the place you would use for hammering. Cordless hammer drills reach hammering through gearing. These tools use a straight shank carbide tip drill bit. When you use these tools, you hear the distinctive crying sound. These tools are excellent for drilling smaller holes, 1/4 is a excellent top end all though they will perform a 3/8 here and there and they do create pieces around 1 to match these tools but trust me, their very best range is 1/4 and under. You may use this tool in case you simply drill masonry once and a while. Many builders use cordless hammer drills for installing tapcon anchors. But again, if you are setting anchors or need to drill more or larger holes, then you owe it to yourself to try out a cordless rotary hammer drill.
If you go to some industrial job site, you may notice bohrhammer drills in use. While the cordless hammer drill has that distinctive whine, rotary hammers have a lower tone and you can actually listen to the little hammering. Rotary hammers are actually have a pneumatic hammering system, the instrument turns slower, but hit a lot harder than a cordless hammer drill. The pieces for this tool are known as ssd or ssd bits. The shank of the piece is all about 3/8 of an inch with two dimples and 2 grooves. You do not throw them in; you simply snap them in the tool. Like the cordless hammer drill, the cordless rotary hammer does well with the smaller pieces. The interesting thing with the smaller pieces is that the pieces will actually last quite a little longer as the tool does not heat up the carbide since it spins slower. When it comes to drilling holes bigger than 1/4, the rotary hammer will blow away the cordless hammer drill. A number of these cordless rotary hammers are rated for up to 1 and thin wall core bits. A number of them can even switch off the spinning and you can add a chisel. You would not believe how hard these tools can strike.
Now that several of these cordless rotary hammers have gone into lithium, they are likely to 36 volts. Talk about a must have these items have great ability, run time and are lightweight. Keep these basic points in mind when determining what sort of cordless hammer. The cordless hammer drill, in my view is truly only a tool for the smaller holes. Bear in mind that is my view based on what I have observed in the transactions over the past 15 years. Even if you are only drilling the holes, then give a cordless rotary hammer drill a go. You really would not believe how effortlessly they can drill masonry material.