Working length L1 mm Total length L2 mm Choose a pack size 1 Pcs. Variants overview Your Selected Variant. Find a local dealer. Fits tools of most brands. Fits all SDS plus rotary hammer drills. Smooth Drilling in Concrete.
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. Walker Walker 5, 20 20 gold badges 59 59 silver badges 84 84 bronze badges. There is some good information on WikiPedia — Tester 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. They are more efficient than standard rotary drills and hammer drills. SDS drills can drill through concrete, brickwork, steel and other tough materials.
They combine the rotary motion of a standard drill with a hammering action. Hammer drill chucks move backwards and forwards, applying the hammering action.
SDS drills apply the hammering action through a mechanism in the chuck. They also have special SDS drill bits that can move backwards and forwards within the chuck. This way, they apply the force in a more precise way. They perform faster and more effective drilling through tough materials. It's how they produce the extra force and torque needed to drill through concrete, stone and other tough materials. SDS drills have a special chuck with a hammer mechanism inside.
SDS drill bits feature indentations along their shaft that fit between two ball bearings within the chuck. This gives them the freedom to move backwards and forwards.
The hammer mechanism acts as a piston, firing the SDS drill bits forwards and backwards within the chuck. It delivers a precise and powerful hammering action as you drill.
This method of delivering the hammer action is much more efficient than a standard hammer drill. With an SDS drill, the power is much more concentrated for faster and more effective drilling.
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