SWT Quick Action Tools Wanli Angle Plain Vise Batch Grinder Batch Angle Vise Verticality:0,005mm Parallelism:0,005mm/100mm Product Precision:±0,005mm Product Type:QKJ Manual Plain Vise Material:20 Chrome Manganese Titanium (20CrMnTi) Product Process: High Frequency Hardened and Forged Jaw Hardness:Working Surface Hardness HRC58-62 Commodity Usage: Used for machine tools such as surface grinders, milling machines, EDM and wire-cutting machines, to complete the angular plane, groove and plane oblique hole processing, and for various angular parts measuring work. Used in surface grinding machine, milling machine, EDM and wire-cutting machine tools, to complete the angle plane, groove and plane oblique hole processing, and can be used for a variety of angular parts of the measurement work. When working, no matter horizontal, vertical or flat can maintain high precision.