Mitutoyo 511-703 Bore Gauge 50-150mm

Part No. 511-703 | Range 50–150 mm

General Tech Services LLC — Genuine Mitutoyo Distributor, Kuwait +965 9807 4888

The Mitutoyo 511-703 is a two-point bore gauge body for measuring internal diameters from 50–150 mm. Supplied without a dial or digital indicator, it allows you to pair the gauge with an indicator and graduation suited to your application. Request a quote in under a minute: call or WhatsApp +965 9807 4888.

Product Overview

The Mitutoyo 511-703 is designed for users who already have compatible dial or Digimatic indicators or require a particular indicator graduation for their measurement work. The gauge body uses a self-centring guide and Mitutoyo 511-series contact geometry for inside-diameter measurement.

Interchangeable 0.5 mm washers provide fine setting adjustment, while the carbide contact point is designed for long wear life. Optional extension rods can provide additional reach for deeper bores.

Typical applications include engine cylinders, pump casings, valve bodies and large bearing housings. The 511-703 is suitable for QC inspectors, calibration labs, fabrication and machining workshops, and maintenance teams serving Kuwait's oil, gas and utilities sectors.

For stable measurements, keep the measuring faces clean and allow the gauge and workpiece to reach the same temperature before inspection. At 150 mm, a 10 °C temperature difference can cause a steel dimension change of approximately 17.2 μm, which can matter when checking close-tolerance components.

For a ready-to-use configuration in the same range, the Mitutoyo 511-713 includes a 0.01 mm dial indicator. For a different larger-range requirement, the Mitutoyo 511-704 covers 100–160 mm.

Key Benefits

• Choose your indicator — pair the gauge body with a suitable dial or Digimatic indicator.

• Fine setting — interchangeable 0.5 mm washers support small step adjustments.

• Deep-hole ready — optional extension rods provide additional measuring reach.

• Self-centring design — the guide helps align the measuring head with the true bore diameter.

• Carbide contact point — provides long wear life for repeated measurements.

• Mitutoyo 511-series design — suitable for repeatable internal-diameter inspection.

Ready to order the 511-703? Call or WhatsApp +965 9807 4888 for pricing and availability.

Who This Product Is Best For

• Machine shops checking engine cylinders and machined bores.

• QC teams measuring bore size, taper and ovality.

• Maintenance teams in oil and gas workshops.

• Engine, pump and hydraulic rebuild workshops.

• Calibration labs requiring a flexible bore gauge body.

• Buyers standardising on the Mitutoyo 511-703 for repeatable bore checks.

How to Measure a Bore With This Gauge

1. Fit the appropriate anvil or 0.5 mm washer combination for the nominal bore size.

2. Install a suitable compatible dial or Digimatic indicator.

3. Set the gauge to zero using a setting ring or master of known size.

4. Insert the gauge into the bore and gently rock it through the measuring position.

5. Read the turning point on the indicator and record the deviation from nominal.

6. Repeat the measurement at different depths and positions to check for taper and ovality.

Frequently Asked Questions

What range does the Mitutoyo 511-703 bore gauge measure?

It measures internal diameters from 50–150 mm.

Is a dial indicator included?

No. The Mitutoyo 511-703 is the gauge body only, allowing you to fit a suitable dial or Digimatic indicator for your application.

Do I need a setting ring?

A setting ring or master of known size is recommended for setting the gauge before measurement and achieving reliable results.

Why does the grip matter?

Heat transferred from the operator's hand can affect the gauge and measurement stability. The larger insulating grip is designed to reduce hand heat transfer by 50%.

Which model should I choose if my part is outside 50–150 mm?

The 511-703 covers 50–150 mm. The Mitutoyo 511-702 covers 35–60 mm, while the Mitutoyo 511-704 covers 100–160 mm.

Can the Mitutoyo 511-703 be recalibrated?

Yes. The Mitutoyo 511-703 can be periodically calibrated through an ISO/IEC 17025-accredited calibration service to help maintain measurement traceability.

How should I store and care for it?

Wipe the measuring faces clean after use, store the instrument in its case away from direct sunlight and coolant, and avoid dropping or impacting it. Check the measurement setup regularly and maintain periodic calibration where traceability is required.

How do I order the Mitutoyo 511-703 bore gauge in Kuwait?

Call or WhatsApp +965 9807 4888 with the model number and required quantity. General Tech Services LLC can provide pricing and availability for Kuwait orders.

For Mitutoyo 511-703 pricing and availability in Kuwait, call or WhatsApp +965 9807 4888.