Biaungdo 1/2" Keyless Drill Chuck Adapter 2.0-13Mm, 1/4-Inch Hex, 20Unf Mount Product Details Package Content - You will get 1 x Keyless Drill Chuck. 1 x 1/4 inch Hex Shank. Mount: 1/2-20UNF.(Note: The product is relatively large, please check if the size is what you need before purchasing) Firm 3-Jaw Design - Firmly fixed twist drills and step drill bits with 0.08 inch to 0.5 inch(2mm to 13mm) shank. High Quality Material - The keyless chuck is made of premium alloy steel, durable and sturdy, has a long service life. Quick Install - Quickly connects to any impact driver and converts to quickly switch tasks. Compatible with many different types of cordless drills. The drill chuck can NOT be used counterclockwise. Risk-free purchase-Biaungdo is committed to providing customers with the best quality goods and services.Just try our products and we believe you will love them as much as we do. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.