Keyless drill chuck 1.type:keyless chuck, 2.brand:Sanou 3. color: black ,others; Keyless drill chuck1.type:keyless chuck,2.brand:Sanou3. color: black ,others; ModelCapacity MountmmInchJ15101-101/32-3/83/8-24UNFJ15101-101/32-3/81/2-20UNFJ1513A2-131/6-1/23/8-24UNFJ1513A2-131/6-1/21/2-20UNF keyless drill chuck