Concrete drill 6PCS set, LAIWEI hole cutter 30mm,40mm, 50mm. with SDS bit and 350mm adapter, hexagonal spanner

• ⭐ LAIWEI concrete drill set with 3 different hole saw sizes: 30mm hole saw, 40mm hole saw, 50mm hole saw, 1 SDS pilot bit, 1 350mm adapter, 1 bolt spanner, made of high quality 45# steel and carbide tungsten tips, heat treated and hardened for robustness.
• ⭐ Carbide tip combined with an optimised design with two large chip evacuation ports on both sides of the coring bit for smoother chip evacuation and higher drilling performance
• ⭐ Carbide hollow hole cutter: easy to operate, easy to use, fast perforation, ideal for cutting clean holes in concrete, brick walls, red bricks, masonry walls, foam bricks and block work. Can be used to install air conditioners, extractor hoods or washing machines. Note: Do not use steel, tiles or stone.
• ⭐ Drill core applications: Widely used for the installation of air conditioners, oil and sewer pipe openings, etc.
• ⭐Note: The opener and connecting rod must be used together to penetrate the wall. During use, apply even pressure and keep the machine steady to prevent danger. It is recommended to wear goggles and gloves when working.

LAIWEI Concrete Drill Bit Set 6pcs Colour: silver LAIWEI concrete drill set with 3 different hole saw sizes: 30mm hole saw, 40mm hole saw, 50mm hole saw, 1 SDS pilot bit, 1 350mm adapter, 1 bolt spanner, made of high quality 45# steel and carbide tungsten tips, heat treated and hardened for robustness and durability. The material consists of high quality 45# steel and tungsten carbide drill bits, heat treated and hardened for robustness and durability. 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 bits: easy to operate, easy to use and fast to pierce, ideal for cutting clean holes in concrete, brick walls, red brick, masonry walls, foam blocks 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 applications. Widely used for installing air conditioners, oil drainage pipes and downpipe openings. Cautions. 1. The opener and connecting rod must be used together to penetrate walls. 2. After closing 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 or walls with reinforcement. 4. This hole opener bit cannot be used with impact drills and hand drills with 3-jaw chuck. 5. To support the drilling performance, chips can be removed by moving the drill bit back and forth. The hole opener and the connecting rod must be used together in order to penetrate walls. During use, the forces should be even and the machine should be stable to prevent danger. It is recommended that goggles and gloves are worn when working. What else can I do for LEWIS? 7x24 customer service.