Made of industrial-grade Chrome vanadium alloy steel, hardened by quenching, refused to cut corners, stable and durable, with service life. The carbon steel embossing jaw is quenched by 45# steel, which is not only wear-resistant but also more tightly clamped by embossing anti- treatment. The bottom of the clamp body adopts positioning and guiding design, which makes positioning more accurate, moving more smoothly and without deviation. The 360-degree rotatable crank handle is designed to be rotatable, which is more convenient to use and operate. clamp all kinds of objects of different sizes and shapes, making the operation easier. Name: 2.5-inch double-track precision clamping milling machine vise Maximum clamping: 70mm Installation hole spacing: 94mm Colour:As Shown Material:Chrome vanadium alloy steel Package Contents: 1 x Milling pliers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.