Concrete drill bit 40mm with SDS bit and 110mm adapter, carbide hollow hole cutter for brick, concrete, cement stone walls

oring drill 40mm(1-5/8″) Colour: Silver with SDS pilot bit and 110 mm adapter, 1 bolt spanner Material consists of high quality 45# steel and tungsten carbide bit, heat treated and hardened for robustness. The core drill bit is designed with two large chip evacuation ports on both sides for smoother chip evacuation and higher drilling performance. Carbide hollow hole cutter: simple to operate, easy to use and fast to pierce, ideal for cutting clean holes in concrete, brick walls, red brick, masonry walls, foam bricks and block work. It can be used to install air conditioners, extractor hoods or washing machines. Note: Do not use steel, tiles or stone. Concrete drill application: Widely used for installing air conditioners, oil drains and sewer pipe openings etc. Caution. 1. The opener and coupling rod must be used together to penetrate walls. 2. After turning off the impact drill mode and drilling into the wall, the positioning drill can be removed and the hole reopened. 3. The hole opener cannot be used on load-bearing walls, walls with reinforcing steel. 4. This hole opener bit cannot be used with impact drills and hand drills with 3-jaw chuck. 5. To support the drilling performance, the drill chips can be removed by moving the bit back and forth. The hole opener and the connecting rod must be used together to penetrate walls. During use, the forces should be even and the machine should be stable to prevent danger . It is recommended to wear goggles and gloves when working. Que peut faire d’autre LAIWEI ? Service clientèle 7×24.