Features Good Material: Forged with high quality Mg aluminum alloy material, anti-rust and also has good durability for long-term use. Practical use: It can install the rear center to support longer workpieces, and can also work with drill, reamer and so on. Wide Utility: Highly compatible with 210 8x16 220x400 220x600 220x750 lathe, also ensuring higher working efficiency. Stable movement: mainly applied to hold the turning tool and drive the cutter so that it moves vertically, horizontally or diagonally. Easy to install: there are fixing holes under the bottom, and the sturdy structure will greatly simplify the installation. Specification: Item Type: Post Clamp Material: Aluminum Alloy Mg Clamp tool block size: approx. 60 x 60 mm/2.36 x 2.36 inches Total length of the plate: approx. 120mm/4.72inch Bottom Fixing Screw Specifications: M5 Slider stroke: approx. 65mm/2.56" Bottom mounting hole size: M5 x 12 mm/0.47 inches, approx. Package List: 1 x Post Vice Clamp Package List 1 x Post Vice Clamp