Extra long reach: deep sockets are 78 mm long, different from shallow sockets, long sockets work best with bolts and nuts, unique 6-point design reduces wear and prevents slipping 10 PCS DEEP IMPACT SOCKETS IN DIFFERENT SIZES The deep impact socket set includes 10mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 19mm, 22mm, 24mm long sockets. The size is clearly marked on the deep socket, easy to identify Solid and durable: the 1/2 deep socket set is forged from high-quality steel, with high-frequency tempering treatment, making it a very strong, high-torque socket tool, with high hardness, the surface has black carbon phosphating, it is resistant to corrosion and rust With 1/4in hex shank adapter – The 1/2in square socket to 1/4in hex shank adapter, allowing the 1/2in socket set to be used on a cordless drill, electric drill, drill, perfect for use with tools such as impact wrench, rotary hammer, air gun, ratchet, wrench, etc Storage Case: The 0.5-inch (1.27 cm) impact driver socket set is neatly organized in a case, easy to carry and store, excellent for various jobs such as car wheel nuts, scaffolding, roofing, Manufacturer: HASERY