Product Description Material: Chrome-Molybdenum Steel Size: Hexagonal Size: 9, 10, 11, 12, 13, 14, 15, 16, 17, 19mm Quantity: 1pc Package Contents: 1 * Household Combination Tool 1.【MATERIAL】: This screwdriver socket set is made of high quality chrome molybdenum steel material that ensures maximum durability with impact wrenches. 2.【GRIP POWER】: Nut Remover Machined from high hardness steel, reverse spiral grooves are designed to bite to provide maximum gripping power. 3.【BOLT REMOVAL KIT】This is a set of 10 piece nut remover set that can be used to remove any type of damaged, stripped, rusted or painted fastener (screws/nuts/bolts) using an open end wrench, crescent wrench, pliers, vise grips or socket. 4.【DESIGN】: Spiral cut teeth provide a secure grip, remove circular or damaged screws. It also includes a rod to remove the damaged fastener from the socket. 5.【EASY TO WORK】: Also this kit includes 10 pieces of nut bolt extractors of different sizes, which can meet the needs of your