Spline drive masonry bits plus#

These do allow for a much longer length as well. Of course, there are plenty of bits smaller than 1” that can be run with an SDS Max drill, but it can often be overkill. Industry standard says that any hole over 1” is cut with an SDS Max bit. If you’re whipping out the big guns to cut bigger holes in masonry or concrete, you’d better have a few SDS Max bits in your toolbox. They can often be found over 1,” but most contractors move to a drill with more power when drilling holes larger than that.

Spline drive masonry bits plus#

Most commonly, SDS Plus bits are used for holes drilled in masonry and concrete (carbide bits) up to 1” in diameter. As seen above, it is a pattern that is consistent with all SDS Plus drill receivers. There are multiple types and sizes of bits with an SDS Plus shank. Please note, SDS Plus bits and drills only pertain to the shank. At the time, it was a major advancement in the clamping of drill bits, thus allowing holes to be drilled more efficiently. The SDS system is said to have been developed by Hilti and Bosch in Germany in the 1970s. This does NOT mean the size of the shank changes, just that the drill has more or less power for cutting holes or chipping concrete. When you’re looking for a drill, whether it’s SDS Max or SDS Plus, you’ll notice a rating such as 1” or 1 1/8.” This refers to the size of bit the drill is capable of running without losing power. The question is, which one is right for you for the job at hand. SDS Max, SDS Plus, Spline, and straight shank bits can be found in almost any hardware store in the world. There are four main categories in the marketplace, and they all serve a purpose. How did buying a drill bit get so confusing? Is there a right and wrong? Is there a better or worse? Are all of these ‘improvements’ really even improvements?