- User-friendly design: Six-sided ear hole supports multiple impact drill models when working on ceilings. Secure with a wire tether to prevent rotation or detachment, improving stability and workflow efficiency. - Upgraded dust protection: Double-layer dust cover designed for electric drills and hammers to trap dust and prevent deposits, significantly reducing inhalation risk and mess during drilling. - Durable materials: Drill hole dust catcher tray made from alloy holes and PP, offering high elasticity and strong toughness. Improved bearing design ensures smooth operation and helps prevent overheating and wear. - Wide compatibility and applications: Suitable for drill bits 4 to 12 mm in diameter. This scalable dust cover suits engineering installations, air conditioning work, wall drilling, curtain installations, and more. - Practical use scenarios: Ideal for ceiling installations and engineering projects where dust control is important; suitable for air conditioning installations and wall drilling; handy for mounting curtain tracks and other interior fixtures while keeping work area clean.