Round Handle Shank Concrete Wall Drill Bit Hole Saw Cutter Cement Stone 30 40 50mm SDS Plus for Brick Cement（Silver）

Professional Core Drill Bit Set: This complete drilling kit contains three high-performance core bits (30mm/40mm/50mm diameters) with matching SDS Plus arbors, precision tungsten carbide guide drills, and a heavy-duty 350mm extension shank. The set is specifically engineered for creating clean, precise holes in various masonry applications. Versatile Masonry Applications: Ideal for drilling through brick walls (both solid and hollow), concrete blocks, red clay bricks, foam concrete, and lightweight masonry structures. Perfect for installing air conditioning piping, ventilation systems, washing machine drain pipes, and other household/construction penetrations. Carbide hole saw core drill is made of higImportant Usage Guidelines: Designed exclusively for masonry materials - never use on steel, ceramic tiles, natural stone, or reinforced concrete. The carbide tips require proper cooling; always use water when drilling to prevent overheating and premature wear. h quality alloy welded. Advanced Cutting Technology: Features brazed tungsten carbide teeth with reinforced welded joints for maximum durability. The segmented blade design with alternating tooth patterns distributes cutting forces evenly, reducing vibration and preventing edge chipping during operation. Precision Drilling System: The included centering guide drill ensures accurate hole positioning, while the SDS Plus extension allows deep wall penetration up to 350mm. Special anti-vibration grooves minimize bit wandering for cleaner holes in brittle masonry materials.