Features: Superior material Made of high-quality chrome-vanadium alloy steel, it is harder, more durable and less likely to wear out. Surface sandblasting treatment The surface of the screw party was sandblasted for better gloss and not easy to rust. A large amount This kit contains 100 pieces in all sizes and can be used widely. Portable Pack in a plastic box for easy access and carry anywhere. Applicable scenes It is suitable for repairing,welding,etc. Specifications Type:Hardware accessories Material:chrome-vanadium alloy steel Quantity:1set Color:red Cutter head :various Size:as shown Insulated:no Net weight:694g/24.48oz Packages: 1set*Electric Screwdriver