Magnetic, heavy duty construction Forged steel body with a magnet to help hold the filter lid in place, providing durability and a secure removal process without risk of dropping or damaging parts. Efficient grip Machined jaws grip firmly onto stubborn filter lids, enabling quick, reliable removal with less slipping or slippage. Ergonomic, user friendly handle Ergonomic rubber handle delivers comfort and a non-slip grip, reducing hand fatigue during extended use. Adjustable size range Compatible with filter sizes from 99" to 3.5" in diameter, making it a versatile tool for HVAC technicians and DIY enthusiasts. Applications and scenarios - Performing routine HVAC maintenance to remove large or stubborn filter covers with confidence. - Servicing commercial filtration housings where lid removal requires extra leverage and control. - Working on automotive or industrial filtration assemblies with compatible lid diameters.