1/4 3/8 1/2 Ratchet Wrench Socket Adapter Spanner Keys Set 4pcs 1/4 3/8 1/2 Drive Socket Adapter Converter Reducer Air Impact Craftsman Socket Wrench Adapter Hand Tools Set BI115+ Description: 4pcs Convertor Set This set allows you to mix and match drive sizes for your sockets, ratchet handles, extension bars and other accessories. Ideal tool for mechanics, engineers, carpenters or DIY enthusiasts Sprung Ball bearing fitting retainer Specification: Size: 1/2 "to 3/8" - (12.5mm square hole to 9.5mm square head) Length: 36mm 3/8 "to 1/4" - (9.5mm square hole to 6.3mm square head) Length: 26mm 3/8 "to 1/2" - (9.5mm square hole to 12.5mm square head) Length: 35mm 1/4 "to 3/8" - (6.3mm square hole to 9.5mm square head) Length: 25mm Height: about 25mm, 26mm, 35mm, 36mm Hardness: 60HRC Made from Chrome Vanadium Steel Shipping 1.You can ask the seller about the shipments to other countries or higher quantity. 2.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. 3.Usually product Reaches after about 12-45 business days depending on destination.If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Refund or resend product will be offered if item still not received. 4.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We ask you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.It is impossible to address issues if we do not know about them!