Quick-Release Design: Enables FOR RAPID tool head locking and release through mechanical structures for efficient operation. Double-Headed Round Shank: Allows installation without orientation concerns for convenient and versatile use. Two-Groove Round Shank Interface: Compatible with most round shank FOR IMPACT drills on the market for broad application. High-Strength Materials: Features high-carbon steel spring sleeves and chrome vanadium steel construction for enhanced durability. Knurled FOR SURFACE Treatment: Provides improved grip with textured patterns for secure handling in various conditions. Color: Silver Material: Metal Package Contents: 1*Round Shank Extension Rod Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.