The GripEdge Tools RPT Socket Extractors feature a patented geometry that is non-tapered to enable complete contact with the fastener sidewall and is designed to grip up to 100 percent rounded bolts, studs, lug nuts, grease nipples, and more. Extracted objects can be removed from the socket opening via the included G-FORS pusher rod. Additionally, compromised fasteners can be re-inserted in a pinch if a suitable replacement is not available. All sockets are hand and impact-ready. Available in sizes ranging from 4mm to 19mm and 3/16" to 3/4".