kwb Stone Drill and Concrete Set Tool Box, 5 Piece,Drill Bits for Concrete, Suitable Rotary Hammer Drills

ISO 5468 COMPLIANT: These drill bits are designed and manufactured according to ISO 5468 standards, ensuring reliable performance and quality. HARDMETAL-TIPPED: The drill bits are equipped with hardmetal tips, making them highly durable and suitable for drilling hard materials like stone and concrete. HIGH-TEMPERATURE SOLDERING: The hardmetal tips are high-temperature soldered to the drill bits, ensuring a secure and long-lasting bond. HALF-ROUND SPIRAL: The spanlosgeformte half-round spiral design facilitates efficient removal of drilling debris for smooth and effortless drilling. VERSATILE AND DURABLE: These drill bits are engineered to withstand the impact of hammer drills and can be used with both rotary and hammer drill machines.