Set Size: 3/8" drive socket extension includes (3"/75mm, 6"/150mm, 10"/250mm) 3 pieces.
Premium Materials: DAKCOS impact extension bar sets are made of premium chrome vanadium steel, can withstand greater torque. With black phosphate finish, corrosion-resistant and durable.
Wide Application: Compatible with 3/8" drive electric, pneumatic and hand wrenches. With long bars easily reach lug nuts, bolts.
Locking Design: The through hole in the base of the drive holds socket securely in place.
Clearly Size: Laser-etched size words on the extensions are easy to read. Anti-rust oil on the surface of the product is normal.