DescriptionIf you are looking for a professional impact driver extension, then your research is over here. That's because our product can meet your need. Adopted of premium material, practical and durable for long time use, not easy to get deformed and bring you much convenience.Features- Color: Silver -Material:Carbon steel - Size: 15.60X1.70X1.70cm/6.13X0.67X0.67in- High carbon steel integrated die-casting, stable structure, hard material, anti-rust, fine workmanship, higher hardness, greater torque. - Higher hardness to prevent potential safety hazards caused by sliding teeth. - Overall heat treatment, better hardenability, high hardness, large torque, strong and durable. - Applicable to the automotive industry, factory manufacturing, home repair, construction and other industries. - Suitable for car maintenance, motorcycle maintenance, mechanical maintenance, bicycle maintenance.