Specifications: 10 piece 1/2" drive (with pin secure hole) deep socket set for professional and DIY use. High quality carbon steel socket set with black oxide coating for stronger adhesion and maximum corrosion resistance. Set Design: 4-point design. Socket Sizes: 8mm, 10mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm, 21mm, 24mm. Rugged, drop-forged and heat-treated to cope with the vibration caused by the impact wrench. High visibility laser marked pieces for easier identification. Advanced design with curved edges system that applies torque to the fastener side which reduces corner round-off. Suitable for reaching fasteners on long studs with ease. Comes with a high quality blow moulded carrying case.