General description The 1Set 2 1/2 Inch Concrete Hole Saw is designed for efficient drilling in various materials such as self-leveling concrete, hollow brick, cement walls, and red bricks. This set includes a 65mm SDS Plus round shank hole saw with a 220mm connecting rod, making it ideal for tasks like installing air conditioners, water pipes, and fume pipes. Technical specifications Diameter: 65mm Shank type: SDS Plus Connecting rod length: 220mm Material: High-quality chromium steel and tungsten alloy Measurement allowed error: +/- 1-3cm Usage Ideal for drilling into concrete, hollow brick, cement walls, and red bricks. Suitable for installation of air conditioners, water pipes, and fume pipes. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.