This Teng Tools 1/2inch drive Stud Extractor which is ideal for inserting and extracting stud bolts. It has one eccentric journalled, knurled wheel which grips against an internal fluting. The TEN2300 Stud Extractor is suitable for stud sizes, ranging from 5.5m to 19mm (7/32 inch - 3/4 inch). https://elecena.pl/product/27174324/teng-2300-stud-extractor-1-2in-drive 2024-11-08 https://elecena.pl/product/27174324/teng-2300-stud-extractor-1-2in-drive 2025-03-18