Mitutoyo 511-160 | Dial Bore Gauge | Graduation 0.0005 inch | Depth 6 inch | Range 1.4 to 2.5 inch
Part No. 511-160 | Range 1.4–2.5" (35.56–63.5 mm) | Graduation 0.0005" | Accuracy ±0.0002" | Dial Indicator Included
Product Overview
The Mitutoyo 511-160 Series 511 dial bore gauge is designed for measuring internal bore diameters and checking variations such as taper and ovality across a 1.4–2.5" (35.56–63.5 mm) range. Its 2-point contact system provides self-centring measurement inside the bore, while interchangeable anvils allow the gauge to accommodate different nominal bore sizes.
The 511-160 includes a 0.0005" graduation dial indicator and provides ±0.0002" accuracy. Its carbide contact point and carbide-tipped anvils provide durable measuring surfaces for regular inspection work. A protective cover helps shield the dial indicator during use.
The gauge has a 6" measuring depth and a Ø3/8" gauge stem. Extension rods are available for applications requiring deeper bore measurement.
Like other dial bore gauges, the 511-160 operates 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 bore dimension.
For a smaller bore range, the Mitutoyo 511-159 covers 0.7–1.4".
Key Benefits
-
1.4–2.5" (35.56–63.5 mm) measuring range.
-
0.0005" dial graduation for clear analog readings.
-
±0.0002" accuracy.
-
2-point self-centring contact system.
-
Interchangeable anvils for different nominal bore sizes.
-
Carbide contact point and carbide-tipped anvils for wear resistance.
-
6" measuring depth.
-
Protective dial cover helps shield the indicator from knocks.
-
Ø3/8" gauge stem.
-
Extension rods available for deeper bores.
-
Supplied in a fitted case.
Who This Product Is Best For
The Mitutoyo 511-160 is suitable for engine rebuilding, hydraulic and pump workshops, CNC machine shops, maintenance departments and quality-control applications requiring bore measurement from 1.4 to 2.5 inches.
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
-
Select and fit the appropriate anvil, spacers or 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 dial 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 511-160 used for?
The 511-160 is used to measure internal bore diameters from 1.4 to 2.5 inches (35.56–63.5 mm) and to identify variations such as taper and ovality.
What is the accuracy of the Mitutoyo 511-160?
The supplied catalogue data specifies an accuracy of ±0.0002".
What is the dial graduation?
The included dial indicator has a 0.0005" graduation.
Is the dial indicator included?
Yes. The supplied specifications identify the 511-160 as including a dial indicator with 0.0005" graduation.
What is the measuring depth?
The specified measuring depth is 6 inches. Extension rods are available for deeper bore applications.
Do I need a setting ring to use the 511-160?
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.
Does the 511-160 measure taper and ovality?
Yes. Taking readings at different depths and angular positions within the bore allows diameter variation, taper and ovality to be identified.
What is the difference between the 511-160 and 511-159?
The 511-160 covers 1.4–2.5", while the Mitutoyo 511-159 covers 0.7–1.4". Select the model whose range brackets the bore size being measured.
How do I buy the Mitutoyo 511-160 in Saudi Arabia?
Contact General Tech Services in Dammam at +966 569 289 544 or email mathews@generaltechsaudi.com for pricing and availability.
