Features: Crafted from strong steel, this socket set ensures good performances in any situation. Oil service socket set included: 12.5mm (1/2") drive, external square, 4mm,5mm,6,8mm, 10mm, 12mm, 14mm,16mm, a socket rail. To unlocking a sump plug and allowing oil to drain from a vehicle. Special oil changings tool can protect the engine from oil corrosion, wear, and overheating, enablings the engine to operate. This socket set is perfect for car enthusiasts and professional alike, making oil changings and maintenance tasks easy. Specifications: Material:Stainless Steel Size:4mm,5mm,6,8mm, 10mm, 12mm, 14mm,16mm Packings Size:Approx.250mm/9.84''x99mm/3.89''x25mm/0.98'' Package Includes: 8Pcs Oil Drain Plug Key Set note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.