Item Type: Post Vice Clamp Material: HT250 grey iron. Tool Clamping Block: Approx. 50 x 50mm / 1.97 x 1.97in Plate Total Length: Approx. 120mm / 4.72in Bottom Fixing Screw Specification: Approx. 6mm / 0.24in Slide Block Stroke: Approx. 63mm / 2.48in Bottom Fixing Hole Size: Approx. 6 x 14mm / 0.24 x 0.55in (metric thread).12 Ways Design: Used to install the turning tool and drive the turning tool to move longitudinally, laterally or diagonally. 2Practical Use: Can install the rear centre to support longer work pieces, and can also install drills, reamers and so on. 3Good Material: Forged with high quality HT250 grey iron material, the gear has been through rust prevention, very durable. 4Broad Utility: Highly compatible with 0618, 7in x 10in, 12in and 14in mini lathe, ensuring high working efficiency as well. 5Easy to Install: There are fixing holes under the bottom, and the sturdy structure largely simplifies the installation. 1 x Post Vice Clamp