- Quality material: Made of quality alloy steel and specially treated to deliver high strength, wear resistance and impact resistance. - Versatile compatibility: This chuck adaptor can be converted between two different drill bits, suitable for a variety of applications and meeting different work needs. - Long term use: Size is 17 cm x 4.2 cm (6.69 in x 1.65 in). The round handle hammer drill converter is built to withstand rigorous tasks and maintain long-term integrity. - Easy to install: Simple plug-in installation design allows quick installation or removal, bringing convenience to your work. - Use scenarios: - Quickly switch between metal and wood bits on a single project to minimize tool changes. - Use with a hammer drill for masonry tasks by swapping to the appropriate bit type. - Handy for DIY furniture building and home repairs where different bit types are frequently required.