Feature 1Durable and practical 2Fast and stable 3Using high-quality materials, strong and durable, has a long service life. 4This product is a chuck for pistol drill charging drill, with hexagonal extension. 5Small size, easy to carry and store, convenient to use and with good performance.Specification Specifications: Chuck Size Thread: 3/8"-24UNF Chuck-in Diameter Range: 0.8mm to 10mm With 1/4" Hex Chuck Adapter Suitable for 9.3mm axis Material:Plastic+Metal Diameter of Chuck:40mm/1.57'' Height of Chuck:50mm/1.96'' Size of Hex Chuck Adapter:L*Dia/50*6mm/1.96*0.23'' Features: Durable and practical Fast and stable Notice: 1.Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid. 2.The color may have different as the difference display, Please understand. Package Included: 1 x Chuck 1 x 1/4" Hex Chuck Adapter .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }