Features 1/2‑inch female socket on one end and a 1/4‑inch hex female socket on the other end. Easy to use, through this chuck adapter, any pneumatic or electric impact wrench can be converted into a drill bit or a ratchet wrench into a driver, quick release converter for impact wrench. With pattern and comfortable handle, wear‑resistant and non‑slip, increase friction and easy to tighten, reduce hand sweat. The chuck is high precision threaded and tapered tightly with rust-resistant Cr-coated body and sleeve electrophoretic enameling coating. All the extensions are applied with rust-proof finishing for extended service life. Quick release and security lock design, easy to replace the bit and sleeve, stable clamping for easy operation, improve your working efficiency. Specification: Condition: 100% Brand New Item Type: Socket Adapter Material: 45# Steel Accessory Type: Adapter Model: Common conversion head Standard: Metric Wrench Shape: Single head wrench Hex Hole: Approx. 1/4in (6.3mm) Square Hole: Approx. 1/2in (12.5mm) Adapter Length: Approx. 50mm/2in, 38mm/1.5in Package List: 1 x 50mm Adapter1 x 38mm Adapter Package List 1 x 50mm Adapter 1 x 38mm Adapter