1. The entire product is made of tungsten steel, high hardness and long service life.2. Easy to install, just connect to the dial indicator.3. The product is suitable for dial indicators with dovetail rails (pay attention to the size you need when purchasing).4. Fine workmanship, stable performance when using it.5. Fully meets the requirements of the dial indicator for measurement accuracy.Specification:Feature:The entire product is made of tungsten steel, high hardness and long service life.Easy to install, just connect to the dial indicator.The product is suitable for dial indicators with dovetail rails (pay attention to the size you need when purchasing).Fine workmanship, stable performance when using it.Fully meets the requirements of the dial indicator for measurement accuracy.Specification:Main material: Tungsten steelType: (Optional)#1, Tungsten steel head M1.4*L15*D0.5#2, Tungsten steel head M1.4*L15*D1.0#3, Ruby head M1.4*L15*D0.5#4, Tungsten steel head M1.4*L15*D2.0#5, Ruby head M1.4*L15*D2.0#6, White steel head M1.4*L17.3*D2.0#7, Tungsten steel head M1.4*L20.9*D2.0#8, Ruby head M1.4*L20.9*D2.0#9, Tungsten steel head M1.4*L39.5*D2.0#10, Ruby head M1.4*L39.5*D2.0Package list:1 * indicator needleNote:The actual product color may differ from the photo due to light. There may be a slight difference when measuring the product.