1.5-10Mm Capacity Mount 3/8-24Unf Drill Chuck 1/4" Hex Shank Converter Impact Product Details Bestgle 1.5-10mm Drill Chuck 3/8-24UNF Mount for Impact Driver Supplied with chuck key, convenient to use and adjust. Made of premium chrome vanadium steel. Jaws have been special treated, has good abrasion resistance. Classic keyed 3-jaw design, accuracy and strong gripping force, securely holds a wide range of twist drills and step drill bits with 0.06" to 0.39" shank. This drill chuck with 1/4 inch hex shank, instantly convert impact driver to hold non-quick change drill driver bits. Versatile use on impact drills and electric power driver to quickly switch tasks and keep the job moving. Specification: Material: Chrome Vanadium Steel Shank: 1/4 Inch Hex Shank Mount Thread: 3/8-24UNF Capacity Range: 1.5 - 10mm (0.06 - 0.39 Inch) Please Note: - The product can NOT be used counterclockwise ! - It must be transferred hammer drill stalls when use the hammer chuck, other stalls will lead chuck broken! -The surface of this product may be scratched due to collisions in the transportation process, but it will not affect the normal use, please rest assured to buy. Package Included: 1 x 3/8? drill chuck 1 x Chuck Key Drill chuck with 1/4 inch hex shank quickly connects to any impact driver and converts to drilling function Impact chuck adaptor capacity: 0.06" - 0.39"/1.5 - 10mm.Mount : 3/8"-24UNF Allows Similar Flexibility in Drilling and Driving Capabilities as a Driver Drill or Corded Drill With a 3 Jawed Chuck Versatile use on impact drills and electric power driver to quickly switch tasks and keep the job moving Constructed from premium chrome vanadium steel for durability and stands up to extensive daily use | NOTE: The hex chuck adapter can NOT be used counterclockwise!! 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.