Quality: High density material chuck converter with good durability and high impact resistance, easy to use Adjustable: Quick charge adapter 1/2 " square or 1/4 " hex and can be used with power tools Innovation: Extended shank for easy tip and sleeve replacement, stable clamping for easy use Pros: One-handed swap is allowed during operation and the adapter firmly holds any 6.35mm hex handle Instructions for use: Converts air or power impact wrench into a drill or ratchet in the engine ★Specification: - Material: chrome vanadium steel - The black color - Top diameter: 6.35 mm / 1/4 " - Bottom diameter: 12.7 mm / 1/2 " - Length: 50 mm / 1.97 " - Type: 1/2 inch to 1/4 inch hex drive - Suitable bit: 1/4 " hexagonal shank ★ Package includes: 4 x Hex Shank Converter ★Features: 1. 1/2 inch to 1/4 inch hex drive that converts air or electric impact wrench into a drill. 2. Ideal for mechanics, engineers, carpenters or DIY enthusiasts. ★ Note: ☛Due to the light and screen setting difference,