dust shroud is made of high quality plastic and metal materials, which is durable, stable, premium and wear-resistant High-precision , stable clamping and precise polishing is suitable for installation and use of angle grinders with a head diameter of 38-40mm The vacuum interface has a diameter of 45mm and a for buckle design that can be connected to a vacuum cleaner. It can efficiently vacuum and environmentally polish, creating a dust-free and healthy working environment Widely Application: It can be widely used in the grinding operations of building materials such as stone, concrete and resin boards The built-in tight bristles can effectively prevent dust from leaking out during for operation, Weight: 0.65477291814 Pounds, Manufacturer: Zambuph