If the above resources are not available or don't produce the needed information, simply try fitting the different types of bits into the chuck (SDS/SDS-plus, SDS Max, and Spline).
The chuck system to which it corresponds is almost always engraved somewhere on the hardware.
#Sds plus masonry bits manual
The point is that if the chuck system isn't already known, then the tool's model number must be known in most cases to find out which system it uses.Įxample: The Bosch 11224VSR Hammer Drill uses an SDS-Plus system, and probably included that information in its advertised name. Also, the name of the chuck system may be written on the tool somewhere and can always be found in the user manual. However, because a tool model number always corresponds to only one kind of chuck system, model numbers are used to pinpoint the exact tool (chuck system included) after sale.
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. "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.
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