Older SDS bits will fit into the same drill as SDS Plus bits, but will require a SDS Plus hammer drill. And SDS Max bit require there own SDS Max hammer drill. The size of the shank prohibits each bit being compatible with another rotary hammer drill.

Whatever the true backronym, most people know SDS to mean one thing: Power. Now let's dive into the 2 types. SDS Plus, which some call just plain ol' SDS, refers to your smaller hammers. With a shank size of 10mm, SDS Plus drills are typically used for jobs that require a bit more finesse.

You should not use SDS bits in a standard drill. The chuck on a standard rotary or hammer drill is not designed for them. Standard bits can come loose, damage the drill and affect the quality of your work.