Includes 6mm / 8mm / 10mm screws to handle crankshaft pulleys, providing a comprehensive solution for automotive repair and maintenance needs Hexagonal top stems works seamlessly with wrenches or power tools, expanding functionality and operational convenience for professional results The reversible screw design allows left right for easy adaptation to different pulley sizes, enhancing efficiency during various removal tasks Crafted from premium iron and cast steel, this puller set exceptionally hardness and wear resistance, ensuring long lastingly durability for repeated use in demanding applications Features a smooth operating bearing removal mechanism that delivers high torques, making crankshaft pulley removal and effortless while saving time and energy, Manufacturer: JSGHGDF