1、EXCELLENT PERFORMANCE: The impact drill bit has a 6 flutes self centering cemented carbide tip, which ensures fast cutting speed and longest service life. It has good comprehensive mechanical properties, good low temperature impact toughness, and good cutting performance. The 6 flutes optimize the removal of drilling chips. 2、EXTENDING SERVICE LIFE: Our optimized design of concrete drill bits allows materials to quickly exit the hole while keeping the concrete hammer drill bit cool. 3、FINE WORKMANSHIP: This drill bit is well crafted with fine threads and standard connectors, that ensure a tight fit with your equipment, choose with confidence! 4、APPLICABLE MATERIALS: This rotary hammer drill bit is used for operations on concrete, masonry, stone, gypsum, etc. 5、EASY TO INSTALL: Comes with a small size and a lightweight as well, this drill bit is easy to install and can be put into use soon.