Adjustable Ball Joint Separator and Press Tool - Cup-Style, 17-45 mm - Function: Uses a cup-style shell and a screw mechanism to separate ball joints; adjustable from 17 to 45 mm to fit a wide range of joints. - Material and build: Carbon steel construction; thrust nut provides leverage for controlled, smoother operation. - Design and performance: Cup-style design distributes load evenly to minimize damage during disassembly; robust for repeated use. - Compatibility: Suitable for ball joints with diameters in the 17-45 mm range. - Use scenarios: 1) Automotive front-suspension service to remove ball joints during suspension repairs. 2) Replacing control arms or related suspension components that require joint removal. 3) General shop maintenance for freeing stubborn ball joints without marring surrounding parts.