The Pittsburgh Forge 12 Piece Rigid Screw Extractor Set Model 40349 is a high-quality hand tool set specifically designed for removing stubborn screws. Made by the reputable brand Pittsburgh Forge, this set includes 12 pieces with a manual drive mechanism for efficient use. Each screw extractor is a unit quantity of 1, perfect for various automotive and industrial applications. Made in China, these durable tools are essential for any DIY mechanic or professional technician looking to extract rigid screws with ease.