This is a Bosch cutter so it's hands down as good as its SDS Plus brother. I'm reviewing this article even though I've only used this drill in a rental shop to warn customers not to mix up their SDS drills. The SDS and "SDS Plus" bits are compatible with the corresponding drill bits such as Bosch Bulldog etc. This particular bit is the "SDS Max" bit and is suitable for large rock drill bits. Don't do what I did and don't buy the wrong bit for your drill only to return it. Luckily, Revain makes it easy to give things back.