Reinforced square/round design with a universal adapter size provides a secure, durable fit for compatible drill/drivers. High quality conversion minimizes tool wear and protects locking mechanisms for precision work in demanding applications. Quick-install design and a built-in shock absorber deliver smooth operation. Instants converts your drill/driver into a hammer drill with steel construction, increasing efficiency for drilling and chiseling tasks while maintaining compatibility across multiple tool types. Ideal for mechanics, contractors and DIY enthusiasts who need versatile, multi-tool capability for professional projects and home repairs. Use scenarios - Drilling into masonry or concrete for anchors and fasteners using hammer mode. - Tile removal and masonry chiseling in renovation work. - Wood, metal or composite drilling and chiseling tasks that require switching between bit types without changing tools.