- 1/2" DR. Stud Remover Tool - Adjustable Range: Suitable for studs ranging from 6-19mm (1/4" - 3/4"). - Effortless Removal: Easily removes studs by turning the extractor with a ratchet, wrench, or socket to engage the cam and stud. - User-Friendly Operation: Simply pull out the stud after engagement for a hassle-free removal process.