Specification Brand : Kuuleyn BulletPoint1 : 【Good Compatibility】: This impact drill has won wide recognition for its outstanding practicality and compatibility, not only with excellent performance, but also with Bosch, Hitachi, Hilite and other well-known brands seamlessly. No matter which brand of tools you use, it will match perfectly, ensuring efficient and smooth work. BulletPoint2 : 【Spiral Double Edge】: This impact drill has a spiral double edge design with a unique 2-flute groove structure that significantly increases cutting speed. This design not only improves the working efficiency, but also ensures the accuracy and stability of the work, which is ideal for you to complete the drilling tasks efficiently. BulletPoint3 : 【 5 Pieces】: This Rotary Hammer Drill Kit comes with 5 rugged and drill bits, just the right number to meet your daily drilling needs. Each bit is carefully crafted to be hard-wearing and fast, ensuring your work goes efficiently and smoothly, making it an indispensable drilling tool. BulletPoint4 : 【Keeps Cool】: This impact drill bit is cleverly designed to quickly expel material out of the hole, effectively avoiding clogging, while keeping the concrete hammer bit constantly cool. This feature not only improves work efficiency, but also extends the life of the drill bit, making your work more efficient and long-lasting. BulletPoint5 : 【Applicable Materials】:Our rotary hammer drill bit is powerful enough to handle brick, stone, concrete or block with ease. Whether for industrial construction or home renovation, it is your indispensable right-hand man, making your projects more efficient and smoothly completed. IncludedComponents : No ItemName : 5Pcs Rotary Hammer Drill Bit,Cemented Carbide Tip Spiral, 2 Flutes Impact Drill Bit,Carbide Tips Drill for Concrete Masonry Bricks Rock Stone (10mm) ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 11 centimeters ItemPackageDimensions_Width : 10 centimeters ItemTypeKeyword : masonry-chisels Manufacturer : Kuuleyn ModelName : Kuuleynk0gz9gb8rw-16 ModelNumber : Kuuleynk0gz9gb8rw-16 PartNumber : Kuuleynk0gz9gb8rw-16 PowerSourceType : ac/dc ProductDescription : Item Type: Impact Drill Bits Material: 40cr, Cemented Carbide Bit: Slot Type Flute: Spiral 2 flutes Length: Approx. 110mm / 4.33in