For rotary hammer drills. Diameter D mm. Working length L1 mm. Total length L2 mm. Choose a pack size. To achieve accurate results, the visibility of the wear mark indicates if the diameter of the hole is still in tolerance for metal anchor setting.
As proof of quality, the drill bit bears the test mark of the PGM Masonry Drill Bit Association Board, guaranteeing compliance with tight tolerances, exact drilling and the firm hold of fixings. It is made in Germany. Available product variations: In order for the page to be displayed optimally, it must be reloaded. Please click the button below to reload the page. Pull apart to zoom. Add a comment. Active Oldest Votes. The SDS chuck system was the original developed by Bosch.
Improve this answer. Glorfindel 1 1 gold badge 10 10 silver badges 20 20 bronze badges. Shawn Furyan Shawn Furyan 1 1 gold badge 5 5 silver badges 12 12 bronze badges. Community Bot 1. Gregory Wiktor Gregory Wiktor 39 2 2 bronze badges. This answer does not really add new info and sets off my "I'm not sure it's spam, but it fits the spam profile" alert system.
Put up some photos to describe the shank's in response to the initial question. These are the most common. Would you prefer I take new pictures just for a forum response or use something I already have? Simon Simon 11 1 1 bronze badge. The question asked was about the differences. You haven't really answered that. Especially when working close to the edge, a smaller, less powerful drill is preferable because it reduces the risk of chipping off a piece of concrete from an outside edge.
You'll find SDS Max have much longer lengths for deeper embedment. There is some overlap between the two but SDS Max are generally designed for more demanding, deeper drilling applications.
The SDS-Max variation has been created to have an improved torsional strength which means that it can be driven at higher speeds and still maintain its force without breaking. When drilling into concrete, bits will inevitably encounter more resistance due to rebar and aggregate that are densely packed in. This is where having a higher torque and increased force will save you time. A versatile drill bit, you would use a SDS Max bit when you have a larger stud that needs to be embedded deep or when drilling through thicker substrates.
For example, when you have to drill through a wall for a conduit or wiring. When you're buying masonry bits, consider the different types that are available and look for one that fits your application. Don't just go buy one because it's cheaper. SDS masonry bits are most commonly used in post-installation of anchors in concrete construction and masonry applications such as stone or brick.
If you work as a trades professional, there are advantages and disadvantages to using different SDS drill bits. Before you purchase your SDS masonry bits it's important to make sure they're compatible with your current drill. Another consideration to make is the application. What diameter hole are you drilling? What are you drilling into? Concrete, stone, brick? Are there concrete dust dangers? These questions can be absolutely paramount to the success of your project.
Once you have these under control, you can move onto your bit types and features. SDS bits undergo some serious pressures and friction when drilling, generating heat and affecting the integrity of the bit. That's why our SDS bits use tungsten carbide. Tungsten carbide-enhanced SDS drill bits are approximately twice as stiff as steel and effectively shed heat. The tip material maintains a sharp cutting edge better than steel tools, allowing for a smoother finish and efficient material removal.
Other brands often can use titanium carbide which while harder, doesn't shed heat as well. It's thermal conductivity is much higher than tungsten carbide, which will bleed into the rest of the steel bit, reducing it's working life. As most masonry bits will have different tips, their integration into the steel flutes and spline vary amongst brands. Key design features to look for will be if the tip is welded or inserted.
But what's the difference? Welded tip designs have faster performance in material removal thanks to the flutes being closer to the tip. Inserted or recessed tips can stay sharper for longer, but are often only used for softer materials. Insert tips will leave more dust that will mean more cleaning and brushing out the hole. Flutes run up the shaft to the spline to remove dust efficient and prevent clogging of the tip. A large distance between tip and flute can prove detrimental but so can the flute amount and design.
The amount of flutes are typically defined by the tip design. The more flutes you have, the more material will be removed at a fast pace. However, it's important to note that both too many and too few flutes can cause problems. Bits with 3 to 4 can be the best compromise for drilling into concrete and masonry.
Higher flute design, that is flutes with a less rotations, allow for greater dust removal while shallower and tighter flutes can be prone to clogging at the tip. Shorter flutes require less pressure while drilling but don't remove as much material which will slow down the job at hand.
Dustless drill bits get their own special mention. New on the market, dustless drill bits use their tips and holes to draw the dust away from the bit and into a vacuum pathway as your drilling.
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