The HUOT Toolholder Vise For BT50 Taper 16T927 is a toolholder vise designed for use with BT50 toolholders. It features a BT50 taper to hold toolholders rigidly and accurately. The vise has a 5" jaw width and opens to 7" to accommodate large toolholders. It's made from fine grain iron for strength and rigidity. The vise comes with a removable chip guard and is hardened to 48-52 HRC. It weighs approximately 35 lbs. The vise provides a rigid setup for milling, grinding, inspection, and tool presetting operations when used with BT50 toolholders.