The universal socket uses a professional drive design that allows you to work with different sizes of fasteners, whether metric or standard. It ensures to work with different shapes - hexagonal and square fasteners, hooks, and even rusted and damaged nuts and bolts, just put the socket on the fastener and go to work.Features:Unique design automatically adjusts to any size or shape, compact and easy to carry.A universal socket can be adjusted immediately to grasp the nuts, screws, hooks and bolt tops.Self-adjusts from 1/4 inch to 3/4 inch standard and 7mm to 19mm metric.Made of chrome-vanadium steel, practical for long service life.Professional universal ratchet socket set, comes with a 3/8" power drill adapter.Can be used in automotive industry, household maintenance, manufacturing industry, etc.Specifications:Material: chrome-vanadium steelSocket color: black, silver (optional)Application: standard 1/4" to 3/4" and metric 7mm to 19mmSocket size: 51 * 25mm / 2.0 * 1.0in (L * D)Socket weight: 136g / 4.8ouncePackage size: approx. 55 * 30 * 30mm / 2.2 * 1.2 * 1.2inPackage weight: approx. 158g / 5.6ouncePackage List:1 * Universal Socket1 * 3/8" Drill Adapter