General description This 1Set 2 1/2 Inch Concrete Hole Saw is designed for efficient drilling in various materials such as cement, brick, and stone. It includes a 65mm SDS Plus round shank hole saw and a 220mm connecting rod drill, making it a versatile tool for both professional and DIY projects. Technical specifications Diameter of hole saw: 65mm Length of connecting rod: 220mm Material: High-quality chromium steel and tungsten alloy Measurement allowed error: +/- 1-3cm Usage Ideal for drilling holes for air conditioners, water pipes, fume pipes, and more. Designed to open self-leveling concrete, hollow brick, cement walls, concrete walls, and red bricks. Other information