1、High speed steel material, high hardness, not easy to be slightly deformed, to meet the requirements of high precision measuring instruments. 2、High precision equipment is manufactured through strict process and the edges are flat. 3、Suitable for use in dial gauges. 4、The thread is M2.5. (Please pay attention to purchase) 5、This flat disc-type contact point is ideal for use with drop indicators in measuring soft materials like foam and plastics. Feature: High speed steel material, high hardness, not easy to be slightly deformed, to meet the requirements of high precision measuring instruments. High precision equipment is manufactured through strict process and the edges are flat. Suitable for use in dial gauges. The thread is M2.5. (Please pay attention to purchase) This flat disc-type contact point is ideal for use with drop indicators in measuring soft materials like foam and plastics. Specification: Material: High speed steel Thread: M2.5 Diameter(mm) Rod length(mm) Thickness T1 5 20 0.4mm T2 6 20 0.4mm T3 8 20 0.5mm T4 10 20 0.5mm T7 8 20 1.0mm T8 10 20 1.0mm T9 5 40 0.4mm T10 6 40 0.4mm T11 8 40 0.5mm T12 10 40 0.5mm T14 6 40 1.0mm T15 8 40 1.0mm Package list: 1 * Dial Gauge Flat Contact Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.