The com.sebtools package is a set of ColdFusion components that provide a broad set of commonly needed functionality. Many of them take advantage of DataMgr, which is included in the package.
The components are all set up as services rather than proper objects, but can be used in either.
The Manager.cfc and Records.cfc (and ProgramManager.cfc) components allow for Super Easy CRUD/File Management. The rest of the components tend to have more focused uses.