Mitutoyo 122-105 Blade Micrometer, Hardened Steel Blade 100-125mm, 0.75mm Blade

Part Number: Mitutoyo 122-105

The Mitutoyo 122-105 blade micrometer features blade-shaped anvil and spindle faces with a 0.75 mm hardened steel blade, allowing it to reach grooves, keyways and narrow slots that conventional flat-faced micrometers cannot easily access. It measures 100–125 mm with 0.01 mm graduation and ±4 μm accuracy. Request a quote in under a minute: call or WhatsApp +965 9807 4888.

Flat micrometer faces can be too wide for grooves, keyways and narrow slots, causing the measurement to land on the shoulder instead of the actual feature. The Mitutoyo 122-105 blade micrometer uses blade-shaped anvil and spindle faces designed to reach the bottom of the groove.

The non-rotating spindle keeps the blade parallel to the slot as it closes, helping prevent twisting or scoring of the workpiece. Its 0.75 mm hardened steel blade is designed for durability in regular workshop and inspection applications.

With a measuring range of 100–125 mm and 0.01 mm graduation, the Mitutoyo 122-105 is suitable for groove diameters on pump and motor shafts, seal grooves and keyways on medium drive shafts. It is useful for machinists, maintenance teams and QC inspectors performing shaft and seal inspections.

For accurate results, allow the Mitutoyo 122-105 and the workpiece to reach the same temperature before taking a final measurement. Temperature differences between hot workshop areas and cooled inspection rooms can affect dimensional readings.

For larger groove diameters, consider the Mitutoyo 122-106 for 125–150 mm.

Key Benefits

• Non-rotating spindle — keeps the blade aligned with the slot without twisting the workpiece

• 0.01 mm graduation — clear analogue reading with no battery required

• Stated accuracy — ±4 μm across the measuring range

• Durable blade — 0.75 mm hardened steel construction for long service life

• Consistent measuring force — ratchet stop helps maintain consistent pressure between operators

• Mitutoyo Series 122 — mechanical blade micrometer design for precision inspection applications

• Reaches narrow features — blade faces measure groove floors, keyways and slots directly

Ready to order the Mitutoyo 122-105? Call or WhatsApp +965 9807 4888 for a fast quote.

Who This Product Is Best For

• Machinists measuring groove diameters on pump and motor shafts

• Pump, motor and gearbox rebuild shops checking seal and circlip grooves

• QC inspectors verifying groove dimensions against engineering drawings

• Maintenance teams requiring a battery-free precision measuring tool

• Buyers who need blade-shaped measuring faces instead of a conventional flat-anvil outside micrometer

How to Use

1. Clean the blade faces and check zero using a setting standard of known size.

2. Align the blade faces with the groove or keyway so they sit square to the feature.

3. Close the micrometer gently using the ratchet stop until it clicks.

4. Read the sleeve and thimble graduations.

5. Record the measurement and compare it with the required drawing or inspection specification.

Frequently Asked Questions

What range does the Mitutoyo 122-105 blade micrometer measure?

It measures 100–125 mm with 0.01 mm graduation.

What is a blade micrometer used for?

It is used to measure groove diameters, keyways, splines and narrow slots where conventional flat-faced micrometer measuring faces cannot reach the feature.

Why is the spindle non-rotating?

The non-rotating spindle keeps the blade parallel to the slot while closing, helping prevent the blade from twisting out of the groove or scoring the workpiece.

Hardened steel or carbide-tipped blade: which should I choose?

Hardened steel is suitable for general measurement work. Carbide-tipped blades provide greater resistance to abrasion and are useful for hard or abrasive materials and heavy-use inspection applications.

Which blade micrometer should I choose if my groove is outside the 100–125 mm range?

Choose a blade micrometer with a range that covers the required groove diameter. The Mitutoyo 122-104 covers 75–100 mm, while the Mitutoyo 122-106 covers 125–150 mm. Blade thickness should also be considered when measuring particularly narrow grooves.

Can the Mitutoyo 122-105 be recalibrated?

Yes. The micrometer can be periodically recalibrated through an ISO/IEC 17025-accredited calibration service to maintain measurement traceability.

How do I order the Mitutoyo 122-105 blade micrometer in Kuwait?

Pricing is quote-based. Call or WhatsApp +965 9807 4888 to confirm price and availability.

For pricing, availability or to place an order, call or WhatsApp +965 9807 4888.