Mitutoyo Digimatic Holtest Internal Micrometer Interchangeable Head Set 12 - 20mm

This is Mitutoyo digimatic holtest set includes one display unit with two interchangeable measuring heads. The unit uses three contact points to measure the inside of holes. Each contact point is evenly spaced and coated with Titanium nitride (TiN) to provide excellent durability. There is a ratchet-stop on the tool to provide constant force while measuring to ensure accuracy. The set comes in a wooden case.

• Measurement Range: 12 - 20 mm
• Head Ranges: 12 -16 mm, 16 - 20 mm
• Accuracy: ± 2 µm
• Resolution: 0.001 mm
  
• Measuring Depth: 84 mm (3.3")
  
• Weight: 560 grams (1.2 lb)
• Included in set: one display unit, 2 measuring heads, 1 setting ring (Ø16 mm), key, 1 battery, box for storage, extension rod

MItutoyo part # 468-972

NOTE: This item is not returnable.