Comprehensive Tool Kit: This set includes 6 screwdriver bit holder keychains, 3 magnetic drill bit extensions, 3 impact-grade socket adapters, and a secure twist-lock carabiner. Each component is designed for efficiency and ease of use in various applications. Versatile Impact Socket Adapter: Engineered to fit most 1/4", 3/8", and 1/2" square sockets, this adapter features a 1/4" hex shank suitable for drills and impact drivers. A spring-loaded ball bearing ensures a secure fit, preventing slippage during use. Extended Reach with Magnetic Bit Holders: The set includes 2.5", 4", and 6" magnetic bit extensions, perfect for accessing tight or difficult-to-reach areas. Strong magnets secure bits in place, while the dual hex shank design enhances versatility. Efficient Quick Release Bit Holder: Designed for rapid bit changes, this holder accommodates most 1/4" hex shank tools. It features a built-in wire lock capable of holding up to 3.3 lbs, ensuring your bits stay secure even in demanding conditions. Durable Construction: Crafted from robust carbon steel for optimal strength and impact resistance, complemented by lightweight, corrosion-resistant aluminum alloy sleeves. This combination ensures long-lasting performance and reliability in various environments. Color: As Shown Material: Metal Package Contents: 1 set of drill bits 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.