If 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 , practical and durable for long time use, not easy to get deformed and bring you much convenience. Features -Color:Silver -Material:Carbon steel - Size: 1.50X1.50X25.50cm/0.59X0.59X10.02in - 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. Package list: 1 x impact extension