Check the listing for details. WORKPRO 9PC Impact Socket Driver Extension Bar Set 1/4" 3/8" 1/2 Drive Extension. Color: Black, Condition: New. Listed at 24.99 USD. Product Description 【Set Includes】This premium 9 PCS impact extension bar set includes the following: 2-inch, 4-inch and 6-inch 1/4-inch drive extensions, 3-inch, 6-inch and 10-inch 3/8-inch drive extensions, and 3-inch, 5-inch and 10-inch 1/2-inch drive extensions. This set also comes with a high quality storage tray perfect for your tool box or bench.【Wide Application】This high-quality accessory socket kit can help you play a role in auto repair and other projects. Safe for use with all cordless, electric and pneumatic impact wrenches. You can use it to access deep screw holes.【Prevents Dropping】 The spring-loaded detent ball system at the end of bars locks socket into place for security and prevents dropping while the through-hole in the drive end will ensure that your extension bars are securely locked onto the drive.【High-quality Materials】The impact extension bar set is made of high-quality chrome-vanadium steel alloy (50BV30) with a corrosion-resistant black phosphate coating for durability. These extension bars feature a corrosion-resistant mirror chrome finish for easy cleanup.【Clearly Size】The high-contrast size marking of the extension bar is permanently laser etched, making it easy to read even in low-light conditions. In addition, the anti-rust oil on the surface of the product is a normal phenomenon.Color‎BlackBrand‎WORKPROMaterial‎Chrome Vanadium Steel, Alloy SteelHead Style‎Fixed SquareFinish Type‎Powder CoatedOperation Mode‎ElectricManufacturer‎‎‎Hang Zhou Great Star Industrial Co.,LTDItem Weight‎3.1 poundsPackage Dimensions‎13.94 x 5.04 x 1.5 inchesFinish‎Powder CoatedWORKPRO 9 PCS Impact Driver Extension Bar SetThis WORKPRO 9 PCS Extension Bar Set, Premium Chrome Vanadium Steel with Black Phosphate Finish. The extension bar is made from premium CR-V steel alloy (50BV30) with a corrosion-resistant black phosphate finish, providing the durability for a hard use. Spring loaded detent ball on adapter ends provide secure fit into sockets, delivering support when used with high torque impact drivers.Extension BarsAn essential tool for home improvement, this bar set by WORKPRO provides extended access hard-to-reach fasteners in tight work spaces.Spring-loaded Detent BalThe spring-loaded detent ball system at the end of bars locks socket into place for security and prevents dropping.Extensions Standard1/4", 3/8", 1/2" drive sizes is the most commonly used lengths.How to Use