[Stylish and Metal Construction] Crafted from aluminum with a matte finish, it offers a feel and exceptional durability. Its metallic texture resists scratches and wear, ensuring long-lasting and practicality. Compatible with standard 1/2 inch to 3/8 inch hexagonal shank drill bits. [Quick and Easy One-Handed Operation] Featuring a highly efficient design, the push-back mechanism allows for quick insertion and release of drill bits. One-handed operation allows for quick loading and removal of bits, making it ideal for busy work environments. [Versatile & Giftable] Equipped with a twist-lock carabiner clip, it can be attached to a belt, shoulder strap, or keychain, making it a practical gift for men and gadget enthusiasts. Whether organizing tools or reducing desk clutter, it's a thoughtful and stylish choice. Color: As Shown Material: Aluminum Alloy + Carbon Steel Package Contents: 1 set of Keychain 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.