https://metalextra.com/harga/insize-digital-depth-gage-2141/
INSIZE Digital Depth Gage 2141 Series (Data out, Accuracy ±20µm) Flat Base, Pointed Anvil SR0.4 + Ball Tip SR3 Stroke; 12.7mm/0.5 Inch, Range; 0-300mm/0-12 Inch