![]() Tools that use these systems will almost always be advertised with the name of the chuck system as part of the tool's advertised name. The type of chuck system cannot be determined by simply looking at the chuck, probing its opening with a finger, or by any other means. Hammer drill and rotary hammer owners must know which chuck system their tool uses. (SDS and SDS-Plus are the only cross-compatible bit systems, making the terms interchangeable.) Comparably, any SDS MAX or Spline bit will also fit perfectly into any tool with a matching chuck system. So, for example, any of the SDS-Plus bits pictured below (despite their differing bit diameter, length, and other features) will fit perfectly into any SDS/SDS-Plus chuck system, because their shank diameters are the same, and the number/placement of their grooves are the same. The number and type of grooves/keyways on the bit shank that fit into the innards of the chuck. The diameter of the bit shank (the end of the drill bit that fits into the chuck), andĢ. This is because the type of chuck system completely determines two things:ġ. Although there are other bit type considerations when making a purchase, as far as making sure that the bit shank will fit the hammer chuck, matching it to the chuck system is the one and only step. Match the Bit Type to the Chuck System To find a compatible bit for your hammer drill or rotary hammer, you only need to know one thing: the chuck system (SDS/SDS-Plus, SDS Max, or Spline). This article explains the design differences between these systems, and it explains why knowing a power hammer's chuck system design is the key to getting a compatible bit for that hammer. ![]() SDS/ SDS-Plus (in terms of compatibility, "SDS" and "SDS-Plus" are completely interchangeable.) For hammer drills and rotary hammers, there are three major chuck/bit design systems available:ġ. ![]() The most important factor in matching a bit to its hammer drill is knowing the chuck system of the tool, and choosing bits designed to correspond to that system. We're happy to take this opportunity to sort through the jumble, break the information down, and make the task of finding the right bit easy, like it should be. The confusion is very understandable, considering that there are several drill bit systems and terms out there that sometimes overlap in definition and compatibility. The 2-fluted geometry of the drill bit provides a fast removal of the drilling dust."What type of drill bit fits my hammer drill?" This is one of the most common questions we get from hammer drill and rotary hammer owners here at. Core-reinforcement geometry ensures that the impact energy of the rotary hammer will be transferred with a high efficiency directly from the power tool to the drill bit tip, resulting in a fast drilling progress. Our bits utilize an improved soldering process while core-reinforcement guarantees a high break resistance. Secondary cutters protect the drill bit in the event of reinforcement collision. Our 4-Claw products utilize special primary cutting geometry and a centering point for exact spot drilling, reduced friction and centralized alignment in drilled hole. Made in Germany and meet all ANSI standards. They are designed for increased life, drilling speed, along with providing a true hole tolerance with all anchoring applications. SDS-Plus 4 Claw Carbide Masonry Drill Bits are designed to reduce vibration, noise, and carbide tip breakage even when encountering rebar. The 2-fluted geometry of the drill bit provides a fast removal of the drilling dust. The geometry of the core-reinforcement ensures that the impact energy of the rotary hammer will be transferred with a high efficiency directly from the power tool to the drill bit tip. Core-reinforcement guarantees a high break resistance. The dynamic, chisel-shaped drill bit head rapidly penetrates the material, simultaneously channelling the drilling dust into the multi-flute spiral. ![]() Due to its aggressive design, the fast and durable carbide tip allows easy centering and spot drilling – not even reinforced steel presents a problem. SDS-Plus Carbide Masonry Drill Bits meet ANSI standards and can be used to drill concrete, block, brick, and soft stone.
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