Material: Bearing SteelQuantity: 5pcsSuitable Diameter:#1: Suitable for 5~7mm#2: Suitable for 6~8mm#3: Suitable for 8~11mm#4: Desirable 11~14mm#5: Desirable 14~18mmInstructions for use:1. Pick a drill bit thinner than the broken screw and drill at the break point2. Choose an extractor that fits the size of the hole, put it in the hole and turn it counterclockwiseDamaged Screw Extractor Set, meets the needs of different screws and bolt sizesQuickly extract the rusty, broken screwsHigh strength and hardness.Easy to useDurable and practical
