7-7/8" Concrete Hole Saw, 200mm Tungsten Steel Core Bit for Cinder Block, Brick, Rock, Plank Walls for Pipes or mini Split Lines, with SDS Max Shank and 2 Center Positioning Drill Bits.

Experience unparalleled drilling performance with the3-7-7/8" (200mm) Tungsten Steel Concrete Hole Saw Kit, your go-to solution for a wide range of masonry tasks. Crafted from premium tungsten steel, this hole saw features an ultra-durable build and high-frequency welding technology for reliable use in the toughest environments.The kit includes a 220mm SDS Max shank connecting rod and 2-piece of 110mm center positioning drill bit, enabling precise and stable drilling through cinderblocks, bricks, and adobe walls. Its triple-edged, razor-sharp teeth cut quicklyand efficiently, while internal and external grooves guide chips outward for a clean operational experience.Designed for versatility, this hole saw works with SDS Plus tools from all major brands and is perfect for various applications, including installing air-conditioning units, exhaust systems, and more. Use with flowing water on high hardness materials to extend tool life, and avoid materials like marble, pebbles, and rebar for optimal performance. Lower drilling speeds at the start help maintain the sharpness of the hole saw’s teeth.Ideal for professional contractors and DIY enthusiasts, the Concrete Hole Saw Kit is an indispensable tool for achieving clean, precise holes in a variety of surfaces, ensuring excellent results.

• Tungsten Steel Construction: 7-7/8" Concrete Hole Saw Built with high-frequency welding technology, this concrete hole saw kit delivers sturdiness and durability for heavy-duty drilling tasks on Hardy Plank, drywall, fiber cement siding, backer board, air brick, stucco, and plasterboard.
• Compatible and Versatile: This Core Bit Works seamlessly with SDS Max tools from all major manufacturers, making it ideal for drilling walls, stones, bricks, and for installations like air-conditioning units, exhaust systems, and sewer pipelines.
• Advanced Design Features: The 200mm Concrete Core Bit Equipped with a 220mm SDS Max connecting rod and 2-piece of 110mm center positioning drill bits, ensuring pinpoint precision and stability during operation.
• Enhanced Cutting Efficiency: The Concrete Hole Saw Kit Features triple-edged, razor-sharp teeth for fast, efficient drilling, with internal and external grooves to guide chips outward for smooth operation.
• Safety and Usage Tips: For best results hole cutting on high hardness materials, use with flowing water to reduce abrasion. Avoid use on marble, pebbles, and rebar. Begin drilling at lower speeds to prevent tooth breakage.