This is an outer maru (round chisel) of a size that's not often seen. The metal, of course, and the blade itself are both solid. The old base is less prone to warping. Even new ones can have rust on the blade if they're old, and in severe cases, the blade can become stuck and not come out. This one also had some rust, but I've wiped it with oil, so please rest assured. Please refrain from price negotiations, except for bulk purchases. Also, please consult beforehand for bulk purchases.