NEIKO 00236A 3/4-Inch-Drive Impact Extension-Bar Set, Made with CrV Steel, 4-Inch, 6-Inch, and 10-Inch Sizes, 3-Piece Set

Made of the highest quality chrome vanadium steel, each piece undergoes a precise heat treating process, hardening and strengthening it for use with impact wrenches and drivers. Black oxide finish absorbs and holds a small amount of oil, preventing rust and corrosion. Set Includes: 1-pc. 3/4 in. Dr x 4 in. Extension Bar; 1-pc. 3/4 in. Dr x 6 in. Extension Bar; 1-pc. 3/4 in. Dr x 10 in. Extension Bar.