Industrial quality drill chucks Key operated with taper or threaded mounts Supplied complete with key For stationary and hand operated drilling machines Capacity, chuck max 16 mm Capacity, chuck min 1 mm Key type S3 Mounting thread size 5/8 x 18 Range 1-16 RoHS Compliant NA Thread size, drill chuck 5/8 x 18 Weight(KG): 0.500