Features Excellent Compatibility: Designed to work seamlessly with major brands like Bosch, Hitachi, and Hilti, ensuring versatility for all your drilling needs Efficient Cutting Design: Featuring spiral 2 flutes and a slot type, these bits provide fast cutting speeds, enhancing your work efficiency and productivity Complete 5-Piece Set: This kit includes 5 durable and wear-resistant drill bits, perfectly meeting your daily requirements for various projects Optimal Cooling System: The innovative design allows material to drain quickly while maintaining a cool temperature, preventing overheating during use Versatile Application: Perfectly suitable for brick, stone, concrete, and block, these drill bits are ideal for both industrial tasks and home improvement projects Features: 1、Good Compatibility: The impact drill bits are practical and have good compatibility, suitable for Bosch, for Hitachi, for Hilti, etc. 2、Spiral 2 Flutes: Impact drill bits ensure fast cutting speed, spiral 2 flutes, and slot type, allowing you to have good working efficiency. 3、5Pcs in Total: There are 5 bits in the rotary hammer drill kit, the number of bits to meet your daily needs, strong and , wear resistant and fast. 4、Keeps Cool: This impact drill bit allows the material to drain out of the hole quickly while keeping the concrete hammer bit cool. 5、Applicable Materials: Our rotary hammer bits can be applied to brick, stone, concrete and block, making them good industrial and home improvement helpers. Specification: Item Type: Impact Drill Bits Material: 40cr, Cemented Carbide Bit: Slot Type Flute: Spiral 2 flutes Length: Approx. 110mm / 4.33in Package List: 5 x Rotary Hammer Drill Bit Package List 5 x Rotary Hammer Drill Bit