A precision internal micrometre for workshop inspection, the Mitutoyo Internal Micrometre 368-907 promises accurate readings across the 3-6 mm range. Reliable measurements reduce scrappage and give confidence during quality checks. Is this the right tool for small-bore inspection tasks on your bench?
⚡ At a Glance
- • Measurement Precision: Consistent internal diameter readings suitable for tight tolerances
- • Best for: Machinists and inspection technicians checking small internal bores
- • Not ideal for: External measurements or internal diameters larger than 6 mm
Carbide-tipped contact points maintain wear resistance for long-term accuracy. A ratchet stop gives consistent contact force for repeatable readings.
Accurate internal readings - thanks to carbide-tipped contact points
Carbide-tipped anvils resist abrasion and hold their geometry under repeated contact, preserving the measuring faces. Stable contact geometry reduces dimensional drift over prolonged use.
Reliable accuracy across many measurements helps maintain process control and reduces the need for frequent recalibration.
Consistent force control - with a ratchet stop
A ratchet stop delivers a repeatable measuring pressure by slipping at a set torque, preventing over-tightening by the operator. Consistent pressure minimises user-induced variation between readings.
Repeatable readings speed up inspection routines and improve confidence in pass/fail decisions during batch checks.
Closer blind-bore access - thanks to contact-point geometry
Contact point and anvil design allow the measuring faces to reach nearer to the bottom of blind bores than many generic gauges. The geometry reduces interference when measuring shallow recesses.
Being able to measure nearer the bore base helps verify internal features without dismantling components or using specialised adapters.
✨ The 4 Key Reasons for Mitutoyo Internal Micrometre 368-907
- Carbide-tipped anvils - Maintain accurate readings even after extended workshop use
- Ratchet stop - Delivers repeatable force for consistent micrometre readings every time
- Blind-bore reach - Measure close to bore bottoms with minimal interference
- Three-point/two-point design - Adaptable measuring method for varied internal geometries
📋 Technical Details at a Glance
- Category: Internal Micrometre
- Brand: Mitutoyo
- Model: 368-907
- Product ID: B003UATIQ4
- Measuring Range: 3 mm - 6 mm
❓ Frequently Asked Questions
Q: Can this micrometre measure blind bores to the bottom?
A: Measurement can be taken closer to the bottom of blind bores, allowing readings nearer the base than many generic gauges.
Q: Are the contact points durable enough for daily shop use?
A: Contact points are carbide-tipped, giving high durability and resistance to wear under repeated measurements.
Q: Is an extension rod available for deeper holes?
A: An extension rod is available as an optional accessory on models over 6 mm, according to the product information provided.
🏆 Our Verdict
Suitable for machinists and inspection technicians who need precise internal measurements in the 3-6 mm range, the micrometre pairs carbide-tipped anvils with a ratchet stop for durable, repeatable readings. The combination of wear-resistant contact faces and consistent force control makes it a dependable workshop instrument that helps reduce rework and maintain quality over time.
