
Best selling Gauges from Jbo
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1. Jbo Thread limit plug gauge
JBO thread limit plug gauge thread insert, EG-M3 6H mod
Metric thread inserts - ISO threads with tolerance 6H. Designed in accordance with DIN 8140/2.
Note: Other dimensions and left-hand threads available upon request.
Appropriate accessories:
558220 protection and packaging tube QuadroPack
558230 protection and packaging tube TwistPack.

2. Jbo Thread ring gauge G 3/4 ″x14 Scrap ring gauge Tolerance A
The thread gauge ring G 3/4"x14 is a precise measuring tool specifically designed for checking Whitworth pipe threads according to DIN EN ISO 228-2. This rejection gauge ring is manufactured in tolerance class A, allowing for reliable testing of thread quality. Made from hardened gauge steel, it offers high durability and resistance, making it an indispensable tool for professionals in metalworking and mechanical engineering. The thread gauge ring is marked in red to indicate its function as a rejection gauge. Additionally, thread gauges with other diameters are available upon request, increasing the flexibility and adaptability of the product. Calibration is performed according to factory standards, ensuring precise use.
- Made from hardened gauge steel for increased durability
- Testing of threads according to DIN EN ISO 228-2
- Rejection gauge in tolerance class A
- Calibration available upon request.

3. Jbo Go thread ring gauge
The JBO thread gauge ring is a precise measuring tool specifically designed for checking metric ISO threads according to DIN 13. It provides a reliable way to verify the quality and tolerance of threads, particularly for dimensions M1 to M1.4. Made from hardened gauge steel, this gauge ring ensures high durability and accuracy. The gauge dimensions comply with the standards set by DIN ISO 1502, allowing for consistent and precise application in various industrial and craft sectors. The thread gauge ring is an essential tool for professionals who value quality and precision. It is ideal for use in the mechanical engineering and manufacturing industries, where adherence to standards and tolerances is of utmost importance.
- Metric ISO thread according to DIN 13
- Made from hardened gauge steel
- Suitable for thread type M1 with a pitch of 0.25 mm
- Complies with gauge dimensions according to DIN ISO 1502.

4. Jbo Thread limit plug gauge
The JBO thread limit gauge is a precise measuring instrument specifically designed for checking metric fine threads. It complies with the standards of the metric ISO fine thread according to DIN 13 and offers a reliable way to verify the quality and tolerance of threads. The gauge dimensions are manufactured according to DIN ISO 1502, ensuring high accuracy and durability. The gauge is made from high-quality gauge steel, making it particularly robust and resilient. It is designed for threads with a pitch of 2 mm and a thread type of M32. For larger threads exceeding M40, the good and reject sides are supplied separately, allowing for flexible handling. The thread limit gauge is an essential tool for professionals who require the highest precision in thread inspection.
- Complies with the standards of the metric ISO fine thread DIN 13
- Made from high-quality gauge steel for durability
- Gauge dimensions according to DIN ISO 1502 for precise measurements.

5. Jbo Thread ring gauge G 1/8 ″x28 Scrap ring gauge Tolerance A
The G 1/8"x28 thread gauge ring from Jbo is a precise measuring tool specifically designed for checking Whitworth pipe threads according to DIN EN ISO 228. This gauge ring is manufactured in tolerance class A, allowing for reliable quality control of threads. Made from hardened gauge steel, it offers high resistance and durability, making it an essential tool for professionals in metalworking and mechanical engineering. The special designation as a gauge ring facilitates identification and application in testing processes. The thread gauge ring is subject to testing and can be calibrated upon request to meet the specific needs of users. Additionally, thread gauges with other diameters are also available upon request, enhancing the product's flexibility and adaptability.
- Tolerance field A for precise measurements
- Made from hardened gauge steel for high durability
- Special designation as a gauge ring
- Calibration available upon request.

6. Jbo Thread ring gauge M4x0.5mm Reject ring gauge Tol.6g BOSS
The M4x0.5mm thread gauge ring from Jbo is a precise measuring tool specifically designed for checking metric fine threads. It complies with the standards of ISO fine threads according to DIN 13 and provides a reliable way to assess the quality of threads. The gauge ring is made from high-quality gauge steel, ensuring high durability and resistance. With a pitch of 0.5 mm and an accurate material designation of steel, this gauge ring is ideal for use in the mechanical engineering and manufacturing industries. The gauge mass meets the requirements of DIN ISO 1502, allowing for precise applications in various technical fields. The thread gauge ring is an essential tool for professionals who value accuracy and quality.
- Complies with the standards of ISO fine threads according to DIN 13
- Made from high-quality gauge steel for durability
- Suitable for checking metric fine threads
- Gauge mass according to DIN ISO 1502 for precise applications.

7. Jbo NoGo thread ring gauge
Design: The ground first thread removes coarse dirt from the workpiece and prevents premature breaking of the first thread. Manufactured according to DIN 2279 − 2299. Note: Thread gauges for threads with different pitches, Whitworth, trapezoidal, round, UNC, UNF, NPT threads, and left-hand threads are available upon request. Usage: For metric ISO threads, right-hand DIN 13.

8. Jbo Thread ring gauge G 1 ″x11 Scrap ring gauge Tolerance A
The G 1"x11 rejection gauge ring tolerance A from Jbo is a precise measuring tool specifically designed for checking Whitworth pipe threads according to DIN EN ISO 228. Made from hardened gauge steel, this rejection gauge offers high resistance and durability, making it ideal for professional use in the industry. The tolerance class A ensures that the threads meet the required standards, while the red-marked design as a rejection gauge allows for clear identification. This product is an essential tool for professionals who want to ensure that their threads meet specific requirements and guarantee the quality of the manufactured parts.
- Made from hardened gauge steel for increased durability
- Designed for checking Whitworth pipe threads according to DIN EN ISO 228
- Tolerance class A for precise measurements
- Rejection gauge marked in red for easy identification.

9. Jbo Thread plug gauge ANSI B1.1 UNC 5/8 ″x11 Nominal Ø 15.875 mm Tolerance 2B
For UNC unit coarse thread ANSI B1.1 - tolerance field 2B - with good and reject side - made of hardened gauge steel - further tolerance fields on request. Further technical features: - Pitch Gg/1″: 11 - Subject to inspection: yes. Calibration on request and against surcharge.

10. Jbo Thread ring gauge UNC 5/16 inchx18 Scrap ring gaugeTol.2A BOSS
The UNC thread gauge ring 5/16 inch x 18 is a precise measuring tool specifically designed for checking UNC standard coarse threads according to ANSI B1.1. Made from hardened gauge steel, this gauge ring offers high resistance and durability, making it ideal for use in demanding industrial environments. With a pitch of 18 micrometers, it allows for accurate measurement and inspection of threads to ensure they meet the required tolerances. The thread gauge ring is mandatory for testing and meets the requirements for precise quality control. Additional tolerance fields are available upon request, enhancing the product's flexibility and adaptability.
- Suitable for testing UNC standard coarse threads according to ANSI B1.1
- Made from hardened gauge steel for increased durability
- Pitch of 18 micrometers for precise measurements
- Mandatory for testing to ensure quality standards.
