[Round ] it is designed with a standard round which makes it easy to install and compatible with most rotary hammer drills in the market. The hammer head is made of steel, with high hardness and strength, wear and impact resistant, strong and durable, not easy to break and deform, and will provide long hammering service. The rotary hammer drill head is carefully designed with a smooth surface, no burrs or raised edges, ensuring that it will not scratch your hands and no risk of damaging the project surface. This hammer head with a round is easy to install and disassemble without the assistance of other tools, saving your time and improving working efficiency, very convenient. This rotary hammer drill head is suitable for hammering walls, tiles, metal sheets, and other materials. Compared with manual hammering, it can save your time and give you more safety. Material: steel colour: Silver Black Package Contents: 2 x rotary hammer drill Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.