High precision, rugged, all steel drill chucks with B16 mounting tapers. Equally suitable for use in drill presses, milling machines or all types of lathes. The jaw opening range is 3-16mm. This chuck fits the optional B16- 1, 2 or 3MT arbors listed separately. A chuck to upgrade the standard chucks offered on some machines, or as accessories for wood or metal turning lathes.