Mitutoyo 511-704 Standard Dial Bore Gauge, Range 100-160mm (Without Dial Gauge)
Part No. 511-704 | Range 100–160 mm | Accuracy 2 µm | 2-Point Contact | Dial Indicator Not Included
Product Overview
The Mitutoyo 511-704 Series 511 dial bore gauge is designed for measuring internal bore diameters and checking variations such as taper and ovality across a 100–160 mm range. Its 2-point contact system provides self-centring measurement inside the bore, while interchangeable anvils allow the gauge to be configured for different nominal bore sizes.
The 511-704 is supplied without a dial indicator, allowing the user to select a compatible Mitutoyo dial or Digimatic indicator according to the required resolution and data-output needs. A 0.01 mm or 0.001 mm dial indicator can be selected for analog measurement, while a Digimatic indicator can provide digital readings and SPC data output.
The gauge uses 13 interchangeable anvils and 4 spacers or washers to cover its measuring range. Its carbide contact point is designed for wear resistance, while the carbide-tipped anvils provide durable contact surfaces for regular inspection work.
The bore gauge functions as a comparator rather than a direct-reading diameter instrument. Before measurement, it should be zeroed against a suitable reference such as a setting ring or an outside micrometer set to the nominal dimension.
For smaller bore ranges, the Mitutoyo 511-713-20 covers 50–150 mm.
Key Benefits
-
100–160 mm measuring range for larger internal bores.
-
2-point self-centring contact system for bore measurement.
-
2 µm wide-range accuracy with 0.5 µm repeatability.
-
13 interchangeable anvils for flexible bore-size configuration.
-
4 spacers or washers for range adjustment.
-
Carbide contact point and carbide-tipped anvils for wear resistance.
-
Compatible with separately supplied dial or Digimatic indicators.
-
Ø8 mm gauge stem for indicator mounting.
-
Suitable for checking bore diameter, taper and ovality.
-
Supplied in a fitted case.
Who This Product Is Best For
The Mitutoyo 511-704 is suitable for engine rebuilding, hydraulic and pump workshops, CNC machine shops, maintenance departments and quality-control applications requiring bore measurement from 100 to 160 mm.
It can be used for first-off inspection, checking machined cylinder bores, verifying dimensions between production operations and evaluating bore wear during maintenance or rebuilding work.
How to Use
-
Mount a compatible dial or Digimatic indicator in the Ø8 mm gauge stem.
-
Select the appropriate anvil, spacers and sub-anvil configuration for the nominal bore size.
-
Set the gauge to zero using a suitable setting ring or an outside micrometer adjusted to the nominal dimension.
-
Insert the gauge into the bore without forcing the contact points against the surface.
-
Rock the gauge gently through the measuring position and identify the minimum reading.
-
Compare the reading with the reference setting to determine the bore deviation.
-
Repeat the measurement at several depths and angular positions to check for taper and ovality.
Frequently Asked Questions
What is the Mitutoyo 511-704 used for?
The 511-704 is used to measure internal bore diameters from 100 to 160 mm and to identify variations such as taper and ovality.
What is the accuracy of the Mitutoyo 511-704?
The supplied catalogue data specifies 2 µm wide-range accuracy, 0.5 µm repeatability and 1 µm adjacent error for the gauge head.
Is a dial indicator included?
No. The 511-704 is supplied without a dial indicator. A compatible dial or Digimatic indicator can be selected separately according to the required measurement resolution and data-output requirements.
How many interchangeable anvils are included?
The supplied specifications identify 13 interchangeable anvils and 4 spacers or washers for configuring the gauge across its 100–160 mm range.
Does the 511-704 measure taper and ovality?
Yes. By taking readings at different depths and angular positions within the bore, the gauge can be used to identify diameter variation, taper and ovality.
Do I need a setting ring to use a dial bore gauge?
A suitable reference is required to establish the zero position before measurement. A setting ring or an outside micrometer set to the nominal dimension can be used.
What is the difference between the 511-704 and 511-713-20?
The 511-704 covers 100–160 mm, while the Mitutoyo 511-713-20 covers 50–150 mm. Select the model whose range brackets the bore size being measured.
How do I buy the Mitutoyo 511-704 in Saudi Arabia?
Contact General Tech Services in Dammam at +966 569 289 544 or email mathews@generaltechsaudi.com for pricing and availability.
