45mm SDS Hole Saw + 200mm Connecting Rod + Twist Drill Bit + Positioning Screw, for Reinforced Concrete Walls, Bricks, and Air Conditioning Openings

[SIZE]: Diameters are available in various sizes: 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm. Suitable for all rotary hammers with an SDS-max shank. [HIGH QUALITY]: Made with YG8 carbide, 40CR die, and high-frequency welded alloy layer, making it very durable. Simple operation, easy to use, and fast drilling. [BLADE DESIGN]: Combines rounded aluminum blades, each blade bearing a portion of the workload and preventing breakage. [HIGH-FREQUENCY WELDING TECHNOLOGY]: The weld holes are very strong, smooth inside and outside the weld opening, with precise indentation and a clean appearance. [WIDE APPLICATION]: Ideal for drilling through concrete, stone, brick, cement, masonry, aerated concrete, compaction blocks, and air conditioners.