This hammer drill has so far withstood great loads. First, use it to ram the foundation with concrete. It measures straight at 10" with a 3/4" top width. I am currently using this on a battery powered hammer drill and there are no issues with what I throw at it. Although it comes with an SDS Plus bit and doesn't have the power of an SDS Max punch, it still does the job perfectly. Definitely recommended for all light/medium demolition jobs.