16-piece Concrete Core Drill Bit Set, Concrete Hole Saw for Dry Core Drilling, 7 Core Bits (30, 40, 50, 65, 80, 100, 110mm) with 100mm and 300mm SDS Plus & SDS Max 6 Centering Drill Bits

【HIGH-QUALITY MATERIAL】: The bell cutter is manufactured using high-frequency welding technology, heat-treated, and hardened with 40CR. Made of hardened metal with excellent hardness and toughness. It is durable and can be used in the harshest conditions, ensuring uncompromising performance. 【SHARP HOLE】: The concrete bell cutters have four cutting edges. Compared to bell cutters with two edges, these are much less abrasive and can pierce hard materials more easily. The dry bell cutter has a precise angle of 135°, making it easier to drill through walls. Seven different sizes (30, 40, 50, 65, 80, 100, 110mm) are included to meet various diameter needs. 【FEATURES OF THE SCIE CLOCHES】: The concrete drill bit is made of a one-piece casing and is equipped with a replaceable centering drill. The body of the scie-cloches is designed with ventilation holes that allow the dust generated during drilling to escape freely, ensuring cleaner and safer work. 【MULTIPLE EXTENSION RODS】: We provide two lengths of SDS centering rods: 100mm and 300mm, and a 300mm SDS-max connecting rod to meet different depth needs. In addition, 3 interchangeable centering drills are included. This set is ideal for drilling materials such as masonry, concrete, natural stone, brick, foam brick, etc. 【MAINTENANCE】: The high-quality coating on the surface of the bell jar prevents rust. In addition, the concrete bell jars have been treated with lubricant at the factory to ensure smooth operation. After use, it is advisable to clean and relubricate the concrete drill bit, bell jar, and other components to reduce wear and extend the life of the tool. The bell jar set is an indispensable drilling accessory for building workers and maintenance technicians. * The Forage Accessoires are mainly used to locate three on the walls for the installation of air conditioning systems, ventilation systems, water and gas conduits. Suitable for brickwork, concrete, natural stone, stoneware, artificial stone, marble, clinker, itonite, reinforced concrete, apparently granulated concrete, old concrete, clay briques and other types of materials of construction. * Thanks to its robust design, the concrete cloche is easy to use and can easily be used with powerful rotary hammers and a large size for hammer without hesitation. The impact force is optimally distributed on a large surface. * Equipped with a special tool box, easy to transport and ranger, it protects the perception of animals and allows you to keep your own tools and organize them at any time. Avis : 1. Scrupulously respect the instructions for using the hammer/perceuse and carry the protection equipment such as the bezels and gants to guarantee the safety of your work. 2. Keep the central view perpendicular to the wall to avoid any glare. Spécifications : Durchmesser: 30/40/50/65/80/100/110mm Couple diameter: 65 mm Number of teeth: 4 pieces Delivery contents: 1 x Mallette 1 x Carotteuse Trépan 30mm 1 x Carotteuse Trépan 40mm 1 x Carotteuse Trépan 50mm 1 x Carotteuse Trépan 65mm 1 x Carotteuse Trépan 80mm 1 x Carotteuse Trépan 100mm 1 x Carotteuse Trépan 160mm 1 x Adaptateur SDS Plus 100 mm 1 x Adapter SDS Plus 300 mm 1 x Adapter SDS Max 300 mm 3 x Center drill 8x110mm