Features: brand new high quality Made of high quality material, durable The dial indicator probe is made of tungsten steel. Three-coordinate probe, three-dimensional probe. The ru by ball head is lightweight, wear-resistant, and stable with temperature changes. Tungsten steel is very light but strong and offers built-in crash protection. Non-magnetic and non-conductive properties for fine and silicon carbide surfaces, and electrical discharge machining (EDM) processes. The probe has good corrosion resistance, wear resistance and light transmission. The industry standard for stylus technology. It is of the hardest materials and is suitable for most applications. Product parameters: Available models: H7805, H1345, H7806, H0033, H7808, H8663, H0034, H0035, H3603, H3882, H0036, H0037, H7804, H4160, H0041, H4161 Material: tungsten steel Color as shown Thread specification: M2 Size: as shown Quantity: 1 Package Included: 1 * Stylus Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data. brand new high quality Made of high quality material, durable The dial indicator probe is made of tungsten steel. Three-coordinate probe, three-dimensional probe. The ru by ball head is lightweight, wear-resistant, and stable with temperature changes.