Mitutoyo 368-174

Holtest Inside Micrometer, 3-point, 100 to 125 mm
TiN-coated measuring contact points provide excellent durability and impact resistance
Measurement can be taken closer to the bottom of the blind bore
Can measure deep holes using an Extension rod
With Ratchet Stop for constant force
Setting Rings for zero point adjustment are optional

Mitutoyo 368-174 Specifications
Accuracy ±5 µm
Range 100 to 125 mm
Measuring Method Three-point
Contact-point Material TiN coating (1700-2000 HV)