SDS plus chuck system, Quick change system, With 3 drills and 2 chisels, With 1pcs quick change chuck, Packed by BMC Dera tools are devoted to making professional quality tools affordable. DERA believes that top quality refers to not only function, usability and appearance, but also efficiency, performance and maintainability. The whole dera team pay great attention to every detail to make DERA tools stand on the top of the world. All the dera team are based in China to support the global marketing. We focus on finding partners overseas instead of setting up our own sales team. Rather than making much advertisement, we prefer to save all extra expense to maximize the benefits to partners. DERA—Make The World In Your Hands.