High-Precision Plain Ring Gauges & Master Setting Rings

Precision is the cornerstone of trust. MISHUTE’s plain ring gauges are engineered to provide reliable power for every measurement. Designed for checking the outside diameter of parts (Go/No-Go) or calibrating internal bore gauges (Master Setting Rings), our gauges ensure strict adherence to your manufacturing boundaries.

What is a Ceramic Ring Gauges?

MISHUTE’s Manufacturing produces high-precision flat ring gauges. These are essential reference tools in machining, used to verify whether the dimensions of holes and shafts comply with “go” and “no-go” tolerances.

We employ an ultra-low-temperature treatment process to ensure dimensional stability of the material and prevent micron-level deformation during long-term use. Whether used for rapid inspection in mass production or as a reference for laboratory calibration, MISHUTE’sgauges deliver sub-micron repeatability, ensuring that every finished product meets strict industry tolerance standards.

Characteristics of ceramic ring gauges:

Roundness as low as 0.005, surface roughness Ra 0.025a; ring gauge accuracy up to 0.05, with national metrology certificates available. TaoYou ring gauges are non-conductive, non-magnetic, heat-resistant and anti-static.
Precision ring gauges are available with a fast turnaround of 5–7 working days, with a minimum order of one piece. We also custom-manufacture non-standard keyway ring gauges, gear ring gauges and special-shaped (D-shaped) ring gauges.

Material:
Ceramic hardness: H1200
Properties:
Exceptional corrosion resistance, high hardness; 35–50 times more wear-resistant than standard steel.
Ring gauge diameter (tolerance):
Standard tolerance: ±0.001 mm

Maximum achievable accuracy: ±0.005 mm
Ring gauge roundness:
Roundness achievable: 0.0005
Surface finish: Ra 0.025 μm

Technical Specifications

Specification D (mm) Outer Diameter D (mm) Thickness B(mm) Outer diameter chamfer C(mm)
3 or more to less than 10 32 8 0.8
More than 10 to less than 15 38 10 1.2
More than 15 to less than 20 45 12
More than 20 to less than 25 53 14
More than 25 to less than 32 63 16 1.5
More than 32 to less than 40 71 18
More than 40 to less than 50 85 20 2

Choose the Right Material for Your Application

We manufacture ring gauges in three premium materials to meet the specific wear-resistance and budget requirements of your production floor

Tungsten Carbide

Ultimate durability. Ideal for high-volume inspection environments. It offers wear resistance up to 50x greater than standard steel, significantly reducing calibration frequency and long-term costs. procurement costs.

Zirconia Ceramic

The performance choice. Impervious to rust, anti-magnetic, and highly stable against temperature fluctuations. Perfect for medical device manufacturing and cleanroom environments.

Hardened Tool Steel

The industry standard. Cost-effective and highly reliable for standard shop floor gauging and low-volume inspections.

Why Choose MISHUTE

Uncompromising Quality Control

As a national high-tech enterprise, we don't just sell gauges; we manufacture precision.

Excellent Material Hardness and Wear Resistance

We offer options in zirconia ceramic (ZrO₂) and tungsten carbide. The ceramic material features rust-free performance, no need for anti-rust oil maintenance, and a coefficient of thermal expansion close to that of steel. Its service life is 5–10 times longer than that of standard tool steel gauges, significantly reducing long-term procurement costs.

20°C Constant-Temperature Machining and Ultra-Precision Grinding

Relying on inspection equipment from Feinmess Jena (Germany) and TESA (Switzerland), all plain gauges undergo final grinding in a constant-temperature environment. The surface roughness can reach Ra 0.05 μm or below, delivering a mirror-like finish. This ensures minimal insertion resistance when the gauge enters the hole, providing an exceptionally precise and smooth measuring feel.

Comprehensive Customization Services

In addition to ISO, DIN, JIS, and ANSI standard specifications, we specialize in custom non-standard dimensions based on customer drawings, such as special-length gauges, grooved plug gauges, and step gauges. We also provide a 1-year quality warranty and support third-party certification services.

Trusted Across High-Tech Industries

Our plain ring gauges are widely utilized to improve inspection efficiency and product stability in

Aerospace & Aviation
Medical Equipment
Semiconductor Manufacturing
Automotive & New Energy
Precision Machining & Mold Making

Frequently Asked Questions about Ring Gauges

Go/No-Go ring gauges are used to check the outer diameter tolerances of manufactured parts. Master setting rings are thicker and used primarily to calibrate and set internal measuring instruments like bore gauges or inside micrometers.

Yes, as a direct manufacturer, we specialize in OEM and customized non-standard gauges to fit your specific engineering requirements.

We provide a full 1-year warranty on our plain gauges, reflecting our confidence in our manufacturing stability.

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