The TOPEX 9-Piece Extension Bar Set, which is made from premium Chrome-Vanadium steel alloy with black phosphate finish. Engineered for use with impact drivers. Drive Impact Extension Set reach past obstructions or into tight, narrow spaces, accessing hard-to-reach fasteners without unnecessary disassembly steps. This extension bar set includes 9 piece extension bar, 1/4" Drive: 50mm, 100mm, 225mm, 3/8" Drive: 75mm, 150mm, 225mm, 1/2" Drive: 50mm, 125mm, 250mm.

• [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 with a corrosion-resistant black phosphate coating for durability. These extension bars feature a corrosion-resistant mirror chrome finish for easy cleanup.
• [Set Includes] This 9 PCS impact extension bar set includes the following: 1/4" Drive: 50mm, 100mm, 225mm, 3/8" Drive: 75mm, 150mm, 225mm, 1/2" Drive: 50mm, 125mm, 250mm.
• [Permanent High-visibility Laser Etched Size Matking] The high-contrast size marking of the extension bar is permanently laser etched, making it easy to read even in low-light conditions.

• Brand: TOPEX
• Model: TX251
• Material: ‎Chrome Vanadium Steel
• Number Of Pieces: ‎9
• Color: Black
• Head Style: Fixed Square, Hex

• 3 x 1/4" Drive: 50mm, 100mm, 225mm
• 3 x 3/8" Drive: 75mm, 150mm, 225mm
• 3 x 1/2" Drive: 50mm, 125mm, 250mm
• 1 x EVA storage tray