Die construction: two-piece die assembly. Die style: two-piece die system. Tool Type: guide. Thread form: metric, thread pitch: 2.5. Thread size: M20, thread size equiv: .7874-Inch, thread size equiv (metric): 20.0mm. Surface condition: bright. Tool size: #5. Outer diameter: 2.7500-Inch, outer diameter (metric): 69.85mm.