General description This Concrete Drill Set includes 30mm, 40mm, and 50mm basic drill bits, an SDS+ chuck, a pilot drill, and a 350mm SDS+ extension shaft. Made of hardened metal with a carbide tip, this drill is designed for durability and long service life. It is suitable for various materials including brick walls, red bricks, masonry, and foam bricks, making it ideal for installing air conditioning systems, cooker hoods, or washing machines. Technical specifications Diameter of core drills: 30mm, 40mm, 50mm Weight: 1.5kg Connecting rod length: Approx. 350mm Material: Carbide-tipped metal Installation The hole opener and connecting rod must be used together to penetrate the wall. After penetrating the wall, the positioning drill can be removed to reopen the hole. This set cannot be used for impact drills and hand drills with three-jaw chucks. Usage Ideal for drilling walls, stones, bricks, and installing air conditioning systems. Low pressure is important to prolong the life of the