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Mitutoyo 148-811 micrometer head, steel spindle, chrome finish

Mitutoyo

Mitutoyo 148-811 Micrometer Head 0-1/2in Steel

SKU CH-0MCR-3MNAC

Mechanical micrometer head measures 0 to 1/2 inch range with 0.001 inch resolution and 0.0001 inch accuracy

  • 0001 in accuracy for precise positioning
  • 001 in resolution enables fine adjustments
  • 0 to 1/2 in range covers common travel needs
  • Spherical spindle tip protects workpiece surfaces
  • JIS B 7502 compliance confirms manufacturing quality

Mechanical Micrometer Head 0–1/2 in

The Mitutoyo 148-811 is a mechanical micrometer head with a 0 in to 1/2 in measurement range. It provides a 0.001 in resolution and 0.0001 in accuracy for precise linear positioning tasks. The spindle is made of steel with a spherical tip and rotates during operation. A spindle lock secures the setting once adjusted.

Hub mounting with 3/8 in diameter

Installation uses a 3/8 in mounting hub that fits compatible fixtures or brackets. The plain thimble reads directly in inches with a chrome scale finish for glare reduction. A spanner is included for locking the spindle and hub nuts during setup. Rotating spindle motion means the contact point moves axially and rotationally, which can affect repeatability on non-flat surfaces.

Suited for inch-based precision adjustment

This head suits engineers and machinists needing inch-graduated fine adjustment in jigs, fixtures or metrology setups. It includes no long-form calibration certificate, so users requiring traceable documentation must arrange certification separately. Buyers needing digital readout, metric graduations or non-rotating spindle designs should look at other models.

Highlights

  • 0001 in accuracy for precise positioning
  • 001 in resolution enables fine adjustments
  • 0 to 1/2 in range covers common travel needs
  • Spherical spindle tip protects workpiece surfaces
  • JIS B 7502 compliance confirms manufacturing quality

Specifications

BrandMITUTOYO

Questions about this item

How do I confirm the micrometer head reads within its 0.0001 in accuracy after mounting it?

Zero the thimble against a calibrated gauge block, then measure a known standard; the reading should stay within 0.0001 in of the standard value.

Does the 148-811 come with a spanner and lock nut, or must I buy them separately?

The package includes a spanner and a spindle lock nut; no extra tools are required for basic installation.

Should I choose the 0–1/2 in range or a longer range for fine adjustment work?

Select the 0–1/2 in model when your travel requirement fits within half an inch; longer ranges add length without improving the 0.001 in resolution.

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