This vise is an economical choice that fills the need of many engravers and craftsmen. With a double-ball bearing system for smooth rotation without wear or looseness, the Standard Block combines outstanding quality with value for workholding. Control the rotational resistance with an internal rotational brake system. Machined from solid stainless steel with a satin finish and black jaws to reduce glare and eye strain. Includes upper jaw plates, 4 pins, 1 plastic hex key and wrench.