Please log in here to access all benefits, including promotional discounts and faster checkouts.
JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6g - M39 x 2
SKU:JBO-500731
Meet the JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, 6g, M39 x 2. This precision tool helps you quickly verify external thread diameters and identify non-conforming parts, supporting ...
Read more ↓
Specifications at a glance
View all specifications ↓
| Thread Form | Metric |
| Size | M39 |
| Pitch | 2 |
| Gauge Type | Ring Gauge (NoGo) |
£153.51
Prices shown ex. VAT
5 days estimated lead time
— subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Learn more about Klarna
Compatible certification
The ones our customers buy most.
Description
Meet the JBO Thread Ring Gauge (NoGo) – Metric Fine, Right Hand, 6g, M39 x 2. This precision tool helps you quickly verify external thread diameters and identify non-conforming parts, supporting reliable quality control across manufacturing, assembly, and maintenance environments.
- Go/No-Go quick verification: Quickly determine whether a part's external thread diameter falls within specification, enabling fast decisions and reducing inspection time on busy lines.
- Durable hardened steel construction: Built to resist wear and maintain accuracy through daily use in QC labs and workshops, delivering long tool life.
- Metric Fine compatibility: M39 x 2 with 6g right-hand thread: Specifically sized for standard metric fine threads, ensuring precise matching and dependable checks for M39 x 2, right-hand threads.
The gauge supports consistent, repeatable measurements, helping you improve workflow, reduce rework, and lock in precise thread tolerances with every inspection. Its robust design and accurate dimensions give technicians and engineers confidence that parts meet the required standards before moving to the next production stage.
Part Numbers
- Protool Part Number
- JBO-500731
- Brand
- JBO
- Category
- Gauge
No downloads are attached to this product yet.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Ask our technical team about this tool
Full Range: JBO Thread Ring Gauges (NoGo) - Metric Fine
View full collection →You are viewing JBO-500731. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-500636 | M30 | 1.5 | £117.33 | 5 days | |
| JBO-501027 | M9 | 0.5 | £84.12 | 5 days | |
| JBO-500640 | M30 | 1.5 | £149.13 | 5 days | |
| JBO-500346 | M16 | 1 | £100.01 | 5 days | |
| JBO-503269 | M14 | 1 | £92.11 | 5 days | |
| JBO-506216 | M36 | 1 | £203.95 | 5 days | |
| JBO-500294 | M14 | 1 | £100.22 | 5 days | |
| JBO-500243 | M12 | 1 | £82.90 | 5 days | |
| JBO-501006 | M8 | 1 | £59.98 | 5 days | |
| JBO-500196 | M100 | 4 | £514.27 | 5 days | |
| JBO-503215 | M68 | 4 | £324.56 | 5 days | |
| JBO-501044 | M95 | 2 | £383.79 | 5 days | |
| JBO-500979 | M78 | 2 | £335.54 | 5 days | |
| JBO-500968 | M72 | 2 | £314.71 | 5 days | |
| JBO-500892 | M58 | 2 | £218.21 | 5 days | |
| JBO-500782 | M42 | 2 | £163.39 | 5 days | |
| JBO-500546 | M25 | 2 | £108.78 | 5 days | |
| JBO-520173 | M118 | 1.5 | £595.41 | 5 days | |
| JBO-500553 | M26 | 1.5 | £105.92 | 5 days | |
| JBO-500464 | M20 | 1.5 | £86.62 | 5 days | |
| JBO-500323 | M15 | 1.5 | £88.60 | 5 days | |
| JBO-500793 | M45 | 1 | £196.27 | 5 days | |
| JBO-500652 | M32 | 1 | £143.64 | 5 days | |
| JBO-500537 | M25 | 1 | £115.14 | 5 days | |
| JBO-500266 | M13 | 1 | £88.27 | 5 days | |
| JBO-500758 | M4.5 | 0.5 | £93.76 | 5 days | |
| JBO-505503 | M52 | 3 | £276.31 | 5 days | |
| JBO-503407 | M48 | 3 | £246.71 | 5 days | |
| JBO-505496 | M45 | 3 | £241.24 | 5 days | |
| JBO-505491 | M42 | 3 | £223.68 | 5 days | |
| JBO-505484 | M39 | 3 | £209.44 | 5 days | |
| JBO-500709 | M36 | 3 | £199.57 | 5 days | |
| JBO-506315 | M33 | 3 | £203.95 | 5 days | |
| JBO-506314 | M30 | 3 | £186.41 | 5 days | |
| JBO-505533 | M85 | 2 | £432.04 | 5 days | |
| JBO-543165 | M82 | 2 | £458.34 | 5 days | |
| JBO-505530 | M80 | 2 | £411.20 | 5 days | |
| JBO-540981 | M78 | 2 | £445.19 | 5 days | |
| JBO-505223 | M76 | 2 | £429.85 | 5 days | |
| JBO-505523 | M75 | 2 | £369.53 | 5 days | |
| JBO-543591 | M72 | 2 | £416.67 | 5 days | |
| JBO-505520 | M70 | 2 | £339.93 | 5 days | |
| JBO-505516 | M68 | 2 | £339.93 | 5 days | |
| JBO-506532 | M65 | 2 | £327.86 | 5 days | |
| JBO-505512 | M64 | 2 | £311.41 | 5 days | |
| JBO-506531 | M62 | 2 | £310.32 | 5 days | |
| JBO-500929 | M60 | 2 | £285.10 | 5 days | |
| JBO-500893 | M58 | 2 | £301.53 | 5 days | |
| JBO-500886 | M56 | 2 | £274.12 | 5 days | |
| JBO-505504 | M55 | 2 | £268.65 | 5 days | |
| JBO-500868 | M52 | 2 | £259.88 | 5 days | |
| JBO-500858 | M50 | 2 | £241.24 | 5 days | |
| JBO-500817 | M48 | 2 | £233.56 | 5 days | |
| JBO-500799 | M45 | 2 | £228.09 | 5 days | |
| JBO-504062 | M42 | 2 | £209.44 | 5 days | |
| JBO-500769 | M40 | 2 | £211.63 | 5 days | |
| JBO-500732 | M39 | 2 | £202.87 | 5 days | |
| JBO-505481 | M38 | 2 | £199.57 | 5 days | |
| JBO-500707 | M36 | 2 | £176.54 | 5 days | |
| JBO-500674 | M33 | 2 | £168.86 | 5 days | |
| JBO-503326 | M32 | 2 | £172.16 | 5 days | |
| JBO-500645 | M30 | 2 | £154.62 | 5 days | |
| JBO-506530 | M28 | 2 | £164.47 | 5 days | |
| JBO-500579 | M27 | 2 | £150.21 | 5 days | |
| JBO-505474 | M26 | 2 | £155.70 | 5 days | |
| JBO-505473 | M25 | 2 | £150.21 | 5 days | |
| JBO-500532 | M24 | 2 | £130.48 | 5 days | |
| JBO-504061 | M22 | 2 | £129.40 | 5 days | |
| JBO-500473 | M20 | 2 | £121.72 | 5 days | |
| JBO-505458 | M18 | 2 | £123.91 | 5 days | |
| JBO-506250 | M85 | 1.5 | £432.04 | 5 days | |
| JBO-506249 | M82 | 1.5 | £411.20 | 5 days | |
| JBO-506248 | M80 | 1.5 | £390.37 | 5 days | |
| JBO-506247 | M78 | 1.5 | £389.26 | 5 days | |
| JBO-506246 | M75 | 1.5 | £359.66 | 5 days | |
| JBO-506245 | M72 | 1.5 | £339.93 | 5 days | |
| JBO-506244 | M70 | 1.5 | £338.82 | 5 days | |
| JBO-506243 | M68 | 1.5 | £313.60 | 5 days | |
| JBO-505513 | M65 | 1.5 | £312.51 | 5 days | |
| JBO-505884 | M64 | 1.5 | £308.13 | 5 days | |
| JBO-506242 | M62 | 1.5 | £298.26 | 5 days | |
| JBO-503667 | M60 | 1.5 | £279.61 | 5 days | |
| JBO-503995 | M58 | 1.5 | £277.42 | 5 days | |
| JBO-500882 | M56 | 1.5 | £264.27 | 5 days | |
| JBO-503499 | M55 | 1.5 | £257.69 | 5 days | |
| JBO-503463 | M52 | 1.5 | £241.24 | 5 days | |
| JBO-500856 | M50 | 1.5 | £232.47 | 5 days | |
| JBO-500814 | M48 | 1.5 | £228.09 | 5 days | |
| JBO-500796 | M45 | 1.5 | £211.63 | 5 days | |
| JBO-500781 | M42 | 1.5 | £201.76 | 5 days | |
| JBO-500767 | M40 | 1.5 | £189.69 | 5 days | |
| JBO-500730 | M39 | 1.5 | £209.44 | 5 days | |
| JBO-500721 | M38 | 1.5 | £183.12 | 5 days | |
| JBO-500704 | M36 | 1.5 | £173.24 | 5 days | |
| JBO-500692 | M35 | 1.5 | £172.16 | 5 days | |
| JBO-500683 | M34 | 1.5 | £175.43 | 5 days | |
| JBO-500670 | M33 | 1.5 | £169.96 | 5 days | |
| JBO-500661 | M32 | 1.5 | £161.19 | 5 days | |
| JBO-500590 | M28 | 1.5 | £143.64 | 5 days | |
| JBO-500574 | M27 | 1.5 | £141.45 | 5 days | |
| JBO-500557 | M26 | 1.5 | £134.87 | 5 days | |
| JBO-503236 | M25 | 1.5 | £131.59 | 5 days | |
| JBO-500528 | M24 | 1.5 | £124.99 | 5 days | |
| JBO-500498 | M22 | 1.5 | £117.33 | 5 days | |
| JBO-500470 | M20 | 1.5 | £109.65 | 5 days | |
| JBO-500393 | M18 | 1.5 | £99.68 | 5 days | |
| JBO-503771 | M17 | 1.5 | £143.64 | 5 days | |
| JBO-500359 | M16 | 1.5 | £92.23 | 5 days | |
| JBO-503758 | M15 | 1.5 | £111.84 | 5 days | |
| JBO-500307 | M14 | 1.5 | £84.33 | 5 days | |
| JBO-500255 | M12 | 1.5 | £86.52 | 5 days | |
| JBO-503439 | M14 | 1.25 | £121.72 | 5 days | |
| JBO-500249 | M12 | 1.25 | £109.65 | 5 days | |
| JBO-500192 | M10 | 1.25 | £89.47 | 5 days | |
| JBO-506126 | M60 | 1 | £337.73 | 5 days | |
| JBO-506124 | M58 | 1 | £327.86 | 5 days | |
| JBO-506122 | M56 | 1 | £312.51 | 5 days | |
| JBO-506120 | M55 | 1 | £301.53 | 5 days | |
| JBO-506118 | M52 | 1 | £285.10 | 5 days | |
| JBO-505955 | M50 | 1 | £294.96 | 5 days | |
| JBO-506117 | M48 | 1 | £265.35 | 5 days | |
| JBO-503257 | M45 | 1 | £250.01 | 5 days | |
| JBO-502994 | M42 | 1 | £234.66 | 5 days | |
| JBO-503268 | M40 | 1 | £229.17 | 5 days | |
| JBO-505480 | M38 | 1 | £210.53 | 5 days | |
| JBO-500701 | M36 | 1 | £203.95 | 5 days | |
| JBO-505478 | M35 | 1 | £197.38 | 5 days | |
| JBO-500679 | M34 | 1 | £198.46 | 5 days | |
| JBO-502989 | M33 | 1 | £187.50 | 5 days | |
| JBO-500654 | M32 | 1 | £183.12 | 5 days | |
| JBO-500634 | M30 | 1 | £162.28 | 5 days | |
| JBO-500586 | M28 | 1 | £163.39 | 5 days | |
| JBO-500568 | M27 | 1 | £162.28 | 5 days | |
| JBO-500551 | M26 | 1 | £153.51 | 5 days | |
| JBO-503314 | M25 | 1 | £148.02 | 5 days | |
| JBO-500522 | M24 | 1 | £139.25 | 5 days | |
| JBO-506148 | M23 | 1 | £155.70 | 5 days | |
| JBO-500490 | M22 | 1 | £133.78 | 5 days | |
| JBO-506147 | M21 | 1 | £148.02 | 5 days | |
| JBO-500462 | M20 | 1 | £116.23 | 5 days | |
| JBO-500402 | M19 | 1 | £135.97 | 5 days | |
| JBO-500382 | M18 | 1 | £109.65 | 5 days | |
| JBO-500368 | M17 | 1 | £119.52 | 5 days | |
| JBO-500349 | M16 | 1 | £97.93 | 5 days | |
| JBO-500322 | M15 | 1 | £119.52 | 5 days | |
| JBO-500295 | M14 | 1 | £90.25 | 5 days | |
| JBO-500269 | M13 | 1 | £111.84 | 5 days | |
| JBO-500244 | M12 | 1 | £83.77 | 5 days | |
| JBO-502746 | M11 | 1 | £91.90 | 5 days | |
| JBO-500185 | M10 | 1 | £73.91 | 5 days | |
| JBO-501037 | M9 | 1 | £81.15 | 5 days | |
| JBO-501008 | M8 | 1 | £66.02 | 5 days | |
| JBO-506145 | M28 | 0.75 | £208.34 | 5 days | |
| JBO-506144 | M27 | 0.75 | £197.38 | 5 days | |
| JBO-506143 | M26 | 0.75 | £196.27 | 5 days | |
| JBO-500536 | M25 | 0.75 | £178.73 | 5 days | |
| JBO-503723 | M24 | 0.75 | £164.47 | 5 days | |
| JBO-503101 | M23 | 0.75 | £180.92 | 5 days | |
| JBO-506142 | M22 | 0.75 | £160.09 | 5 days | |
| JBO-503962 | M21 | 0.75 | £169.96 | 5 days | |
| JBO-502788 | M20 | 0.75 | £133.78 | 5 days | |
| JBO-505460 | M19 | 0.75 | £160.09 | 5 days | |
| JBO-503242 | M18 | 0.75 | £126.10 | 5 days | |
| JBO-506089 | M17 | 0.75 | £148.02 | 5 days | |
| JBO-500342 | M16 | 0.75 | £117.33 | 5 days | |
| JBO-505856 | M15 | 0.75 | £127.21 | 5 days | |
| JBO-500291 | M14 | 0.75 | £101.54 | 5 days | |
| JBO-506088 | M13 | 0.75 | £117.33 | 5 days | |
| JBO-500238 | M12 | 0.75 | £92.01 | 5 days | |
| JBO-500210 | M11 | 0.75 | £103.29 | 5 days | |
| JBO-500178 | M10 | 0.75 | £83.46 | 5 days | |
| JBO-502782 | M9 | 0.75 | £90.25 | 5 days | |
| JBO-501002 | M8 | 0.75 | £75.00 | 5 days | |
| JBO-500961 | M7 | 0.75 | £88.06 | 5 days | |
| JBO-500920 | M6 | 0.75 | £73.68 | 5 days | |
| JBO-503265 | M5 | 0.75 | £95.08 | 5 days | |
| JBO-503946 | M18 | 0.5 | £199.57 | 5 days | |
| JBO-506085 | M17 | 0.5 | £189.69 | 5 days | |
| JBO-503945 | M16 | 0.5 | £164.47 | 5 days | |
| JBO-506084 | M15 | 0.5 | £167.77 | 5 days | |
| JBO-506083 | M14 | 0.5 | £151.32 | 5 days | |
| JBO-506082 | M13 | 0.5 | £153.51 | 5 days | |
| JBO-503944 | M12 | 0.5 | £139.25 | 5 days | |
| JBO-506081 | M11 | 0.5 | £142.55 | 5 days | |
| JBO-500173 | M10 | 0.5 | £121.72 | 5 days | |
| JBO-503943 | M9 | 0.5 | £114.03 | 5 days | |
| JBO-500997 | M8 | 0.5 | £110.75 | 5 days | |
| JBO-503942 | M7 | 0.5 | £104.82 | 5 days | |
| JBO-500914 | M6 | 0.5 | £105.48 | 5 days | |
| JBO-500841 | M5 | 0.5 | £101.44 | 5 days | |
| JBO-503941 | M4.5 | 0.5 | £114.03 | 5 days | |
| JBO-500750 | M4 | 0.5 | £101.44 | 5 days | |
| JBO-503684 | M4 | 0.35 | £101.54 | 5 days | |
| JBO-503656 | M3.5 | 0.35 | £104.95 | 5 days | |
| JBO-500610 | M3 | 0.35 | £112.95 | 5 days | |
| JBO-506282 | M70 | 2 | £339.93 | 5 days | |
| JBO-506281 | M68 | 2 | £339.93 | 5 days | |
| JBO-506280 | M65 | 2 | £315.79 | 5 days | |
| JBO-500938 | M64 | 2 | £321.28 | 5 days | |
| JBO-506279 | M62 | 2 | £301.53 | 5 days | |
| JBO-505804 | M60 | 2 | £285.10 | 5 days | |
| JBO-506278 | M58 | 2 | £301.53 | 5 days | |
| JBO-500884 | M56 | 2 | £280.72 | 5 days | |
| JBO-500876 | M55 | 2 | £268.65 | 5 days | |
| JBO-500866 | M52 | 2 | £252.20 | 5 days | |
| JBO-506277 | M50 | 2 | £260.97 | 5 days | |
| JBO-504016 | M48 | 2 | £239.05 | 5 days | |
| JBO-505934 | M45 | 2 | £228.09 | 5 days | |
| JBO-500783 | M42 | 2 | £214.91 | 5 days | |
| JBO-506276 | M40 | 2 | £222.60 | 5 days | |
| JBO-504015 | M39 | 2 | £202.87 | 5 days | |
| JBO-506275 | M38 | 2 | £209.44 | 5 days | |
| JBO-504014 | M36 | 2 | £184.22 | 5 days | |
| JBO-500672 | M33 | 2 | £173.24 | 5 days | |
| JBO-506274 | M32 | 2 | £178.73 | 5 days | |
| JBO-500642 | M30 | 2 | £159.00 | 5 days | |
| JBO-506273 | M28 | 2 | £164.47 | 5 days | |
| JBO-500576 | M27 | 2 | £150.21 | 5 days | |
| JBO-506272 | M26 | 2 | £148.02 | 5 days | |
| JBO-506271 | M25 | 2 | £143.64 | 5 days | |
| JBO-502733 | M24 | 2 | £134.87 | 5 days | |
| JBO-500500 | M22 | 2 | £129.40 | 5 days | |
| JBO-504013 | M20 | 2 | £128.29 | 5 days | |
| JBO-504012 | M18 | 2 | £129.40 | 5 days | |
| JBO-506474 | M85 | 1.5 | £419.97 | 5 days | |
| JBO-506472 | M82 | 1.5 | £411.20 | 5 days | |
| JBO-506471 | M80 | 1.5 | £402.41 | 5 days | |
| JBO-506469 | M78 | 1.5 | £389.26 | 5 days | |
| JBO-505522 | M75 | 1.5 | £369.53 | 5 days | |
| JBO-503153 | M72 | 1.5 | £349.78 | 5 days | |
| JBO-505518 | M70 | 1.5 | £328.97 | 5 days | |
| JBO-506467 | M68 | 1.5 | £324.56 | 5 days | |
| JBO-504011 | M65 | 1.5 | £304.83 | 5 days | |
| JBO-506464 | M64 | 1.5 | £308.13 | 5 days | |
| JBO-504052 | M62 | 1.5 | £288.38 | 5 days | |
| JBO-504051 | M60 | 1.5 | £279.61 | 5 days | |
| JBO-505506 | M58 | 1.5 | £268.65 | 5 days | |
| JBO-500881 | M56 | 1.5 | £264.27 | 5 days | |
| JBO-506459 | M55 | 1.5 | £257.69 | 5 days | |
| JBO-505810 | M52 | 1.5 | £241.24 | 5 days | |
| JBO-503447 | M50 | 1.5 | £232.47 | 5 days | |
| JBO-500811 | M48 | 1.5 | £228.09 | 5 days | |
| JBO-505492 | M45 | 1.5 | £211.63 | 5 days | |
| JBO-503485 | M42 | 1.5 | £206.14 | 5 days | |
| JBO-503159 | M40 | 1.5 | £196.27 | 5 days | |
| JBO-505482 | M39 | 1.5 | £209.44 | 5 days | |
| JBO-500717 | M38 | 1.5 | £183.12 | 5 days | |
| JBO-505883 | M36 | 1.5 | £188.61 | 5 days | |
| JBO-500689 | M35 | 1.5 | £172.16 | 5 days | |
| JBO-506451 | M34 | 1.5 | £179.84 | 5 days |
No products match your filters.
