Description Description: Material: Spline bit socket set is made of carbon steel, which is strong, wear resistant, and impact resistant, ensuring long term performance and reliability Easy to Install: Spline bit socket set, high reliability, and performance, simple and convenient to use, saving time and effort, and improving work efficiency Quality: Steel spline bit socket accessory, professional manufacturing, stable performance, and long service life Function: Maintenance tool is widely used to remove oil pan screws to release engine oil, suitable for a variety of environments Wide Application: Repair kit has complete specifications and wide application, ideal for most models, and can be configured with oil pan screws of different types of models Specification: Material: Carbon steel Size Chart: 23.5 cmx19 cmx5.5 cm/9.25 inchx7.48 inchx2.17 inch Package Includes: 12 Spline Bit Sockets Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.