[Material]: The vise is made of high-quality alloy steel, with a hardness of HRC 58-62, ensuring durability and long-lasting performance. [Size]: The vise has a jaw width of 1", a jaw opening of 0.8", a jaw depth of 0.8", and weighs approximately 1.llbs, providing versatility for various workpiece sizes and weights. [Surface Process]: All surfaces of the vise are hardened and precision ground, ensuring smooth and accurate operation. [Accuracy]: The vise offers high accuracy, with squareness and parallelism within ±0.0002 inches, providing precise and consistent clamping results. [V-Groove]: The "V" way design of the vise allows for holding square and round parts vertically and horizontally, enhancing versatility and flexibility in workpiece positioning., Manufacturer: HFS