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JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M55 x 2
SKU:JBO-517375
The JBO Thread Plug Gauge (NoGo) – Metric Fine – Left Hand – 6H – M55 x 2 is a precision inspection tool designed to verify threaded holes with metric fine threads. It’s built for engineers, mach...
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Specifications at a glance
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| Thread Form | Metric |
| Size | M55 |
| Pitch | 2 |
| Gauge Type | Plug Gauge (NoGo) |
£150.21
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.
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Learn more about Klarna
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Description
The JBO Thread Plug Gauge (NoGo) – Metric Fine – Left Hand – 6H – M55 x 2 is a precision inspection tool designed to verify threaded holes with metric fine threads. It’s built for engineers, machinists, quality control teams, and workshop technicians who need fast, reliable go/no-go checks to confirm hole size and thread fit during production and maintenance.
Crafted for durability, this gauge uses hardened steel construction to resist wear in demanding environments. Its NoGo design enables quick, clear pass/fail determinations, helping you reduce rework and downtime while keeping your production on schedule.
- NoGo design for metric fine threads: Quickly verify hole size by ensuring the plug gauge cannot be inserted past the NoGo limit, helping prevent undersized or oversized threads in critical assemblies.
- Durable hardened steel with knurled grip: Built to withstand daily shop use, the hardened steel resists wear while the textured knurl provides secure, repeatable handling for accurate inspections.
- Left-hand thread compatibility (M55 x 2, 6H): Precisely sized for metric fine left-hand threads, ensuring dependable checks for this specific thread form and tolerance class.
Using the JBO Metric Fine NoGo Thread Plug Gauge streamlines quality inspection, shortens setup time, and maintains consistent thread integrity across batches. The robust construction minimizes downtime from wear, while the precise NoGo limit delivers trustworthy results for left-hand threads (M55 x 2, 6H), helping you produce with confidence.
Part Numbers
- Protool Part Number
- JBO-517375
- 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 Plug Gauges (NoGo) - Metric Fine
View full collection →You are viewing JBO-517375. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-510384 | M42 | 1 | £99.13 | 5 days | |
| JBO-510396 | M45 | 1 | £104.39 | 5 days | |
| JBO-510410 | M48 | 1 | £111.84 | 5 days | |
| JBO-510435 | M50 | 1 | £117.33 | 5 days | |
| JBO-510445 | M52 | 1 | £121.72 | 5 days | |
| JBO-513566 | M55 | 1 | £129.40 | 5 days | |
| JBO-510458 | M56 | 1 | £131.59 | 5 days | |
| JBO-510465 | M58 | 1 | £141.45 | 5 days | |
| JBO-513147 | M60 | 1 | £148.02 | 5 days | |
| JBO-513479 | M62 | 1 | £167.77 | 5 days | |
| JBO-513731 | M64 | 1 | £169.96 | 5 days | |
| JBO-514016 | M65 | 1 | £172.16 | 5 days | |
| JBO-516620 | M68 | 1 | £182.03 | 5 days | |
| JBO-510507 | M70 | 1 | £186.41 | 5 days | |
| JBO-520033 | M72 | 1 | £194.08 | 5 days | |
| JBO-520034 | M75 | 1 | £207.25 | 5 days | |
| JBO-520035 | M76 | 1 | £208.34 | 5 days | |
| JBO-520036 | M78 | 1 | £221.49 | 5 days | |
| JBO-520037 | M80 | 1 | £219.30 | 5 days | |
| JBO-510386 | M42 | 1.5 | £84.99 | 5 days | |
| JBO-510397 | M45 | 1.5 | £89.92 | 5 days | |
| JBO-510412 | M48 | 1.5 | £95.74 | 5 days | |
| JBO-510436 | M50 | 1.5 | £99.13 | 5 days | |
| JBO-510446 | M52 | 1.5 | £102.32 | 5 days | |
| JBO-510454 | M55 | 1.5 | £109.65 | 5 days | |
| JBO-510459 | M56 | 1.5 | £111.84 | 5 days | |
| JBO-510466 | M58 | 1.5 | £115.14 | 5 days | |
| JBO-510483 | M60 | 1.5 | £119.52 | 5 days | |
| JBO-510488 | M62 | 1.5 | £123.91 | 5 days | |
| JBO-510493 | M64 | 1.5 | £127.21 | 5 days | |
| JBO-510496 | M65 | 1.5 | £131.59 | 5 days | |
| JBO-510501 | M68 | 1.5 | £134.87 | 5 days | |
| JBO-510508 | M70 | 1.5 | £141.45 | 5 days | |
| JBO-510511 | M72 | 1.5 | £149.13 | 5 days | |
| JBO-510513 | M75 | 1.5 | £155.70 | 5 days | |
| JBO-513382 | M76 | 1.5 | £188.61 | 5 days | |
| JBO-510517 | M78 | 1.5 | £162.28 | 5 days | |
| JBO-510543 | M80 | 1.5 | £167.77 | 5 days | |
| JBO-510546 | M82 | 1.5 | £169.96 | 5 days | |
| JBO-510547 | M85 | 1.5 | £176.54 | 5 days | |
| JBO-510551 | M88 | 1.5 | £182.03 | 5 days | |
| JBO-510561 | M90 | 1.5 | £186.41 | 5 days | |
| JBO-513056 | M92 | 1.5 | £194.08 | 5 days | |
| JBO-520054 | M98 | 1.5 | £246.71 | 5 days | |
| JBO-510089 | M100 | 1.5 | £207.25 | 5 days | |
| JBO-510092 | M102 | 1.5 | £248.90 | 5 days | |
| JBO-513006 | M105 | 1.5 | £219.30 | 5 days | |
| JBO-520055 | M108 | 1.5 | £265.35 | 5 days | |
| JBO-513931 | M110 | 1.5 | £230.28 | 5 days | |
| JBO-510105 | M112 | 1.5 | £267.55 | 5 days | |
| JBO-520056 | M115 | 1.5 | £276.31 | 5 days | |
| JBO-520057 | M118 | 1.5 | £284.00 | 5 days | |
| JBO-520058 | M120 | 1.5 | £286.19 | 5 days | |
| JBO-520059 | M122 | 1.5 | £309.22 | 5 days | |
| JBO-520060 | M125 | 1.5 | £301.53 | 5 days | |
| JBO-510124 | M128 | 1.5 | £325.67 | 5 days | |
| JBO-517862 | M130 | 1.5 | £313.60 | 5 days | |
| JBO-520061 | M132 | 1.5 | £319.09 | 5 days | |
| JBO-517018 | M135 | 1.5 | £334.44 | 5 days | |
| JBO-520062 | M138 | 1.5 | £341.01 | 5 days | |
| JBO-520063 | M140 | 1.5 | £346.50 | 5 days | |
| JBO-520064 | M142 | 1.5 | £345.40 | 5 days | |
| JBO-520065 | M145 | 1.5 | £357.46 | 5 days | |
| JBO-520066 | M148 | 1.5 | £367.34 | 5 days | |
| JBO-518078 | M150 | 1.5 | £373.92 | 5 days | |
| JBO-510389 | M42 | 2 | £87.63 | 5 days | |
| JBO-510400 | M45 | 2 | £93.55 | 5 days | |
| JBO-510415 | M48 | 2 | £98.69 | 5 days | |
| JBO-510439 | M50 | 2 | £102.10 | 5 days | |
| JBO-510448 | M52 | 2 | £106.14 | 5 days | |
| JBO-510456 | M55 | 2 | £112.95 | 5 days | |
| JBO-510461 | M56 | 2 | £115.14 | 5 days | |
| JBO-510467 | M58 | 2 | £118.42 | 5 days | |
| JBO-510484 | M60 | 2 | £123.91 | 5 days | |
| JBO-510489 | M62 | 2 | £127.21 | 5 days | |
| JBO-510494 | M64 | 2 | £131.59 | 5 days | |
| JBO-510497 | M65 | 2 | £134.87 | 5 days | |
| JBO-510502 | M68 | 2 | £141.45 | 5 days | |
| JBO-510509 | M70 | 2 | £144.74 | 5 days | |
| JBO-510512 | M72 | 2 | £150.21 | 5 days | |
| JBO-510514 | M75 | 2 | £155.70 | 5 days | |
| JBO-510516 | M76 | 2 | £166.67 | 5 days | |
| JBO-510518 | M78 | 2 | £169.96 | 5 days | |
| JBO-510544 | M80 | 2 | £167.77 | 5 days | |
| JBO-516627 | M82 | 2 | £178.73 | 5 days | |
| JBO-510548 | M85 | 2 | £178.73 | 5 days | |
| JBO-510552 | M88 | 2 | £196.27 | 5 days | |
| JBO-510562 | M90 | 2 | £186.41 | 5 days | |
| JBO-510565 | M92 | 2 | £191.89 | 5 days | |
| JBO-510567 | M95 | 2 | £196.27 | 5 days | |
| JBO-510568 | M98 | 2 | £201.76 | 5 days | |
| JBO-510090 | M100 | 2 | £207.25 | 5 days | |
| JBO-516575 | M102 | 2 | £252.20 | 5 days | |
| JBO-510093 | M105 | 2 | £219.30 | 5 days | |
| JBO-510095 | M108 | 2 | £266.46 | 5 days | |
| JBO-510103 | M110 | 2 | £229.17 | 5 days | |
| JBO-516577 | M112 | 2 | £274.12 | 5 days | |
| JBO-513918 | M115 | 2 | £276.31 | 5 days | |
| JBO-519513 | M118 | 2 | £288.38 | 5 days | |
| JBO-510122 | M120 | 2 | £286.19 | 5 days | |
| JBO-516578 | M122 | 2 | £309.22 | 5 days | |
| JBO-514978 | M125 | 2 | £301.53 | 5 days | |
| JBO-520077 | M128 | 2 | £309.22 | 5 days | |
| JBO-514719 | M130 | 2 | £313.60 | 5 days | |
| JBO-510129 | M132 | 2 | £319.09 | 5 days | |
| JBO-520078 | M135 | 2 | £326.75 | 5 days | |
| JBO-520079 | M138 | 2 | £335.54 | 5 days | |
| JBO-518882 | M140 | 2 | £338.82 | 5 days | |
| JBO-520081 | M142 | 2 | £345.40 | 5 days | |
| JBO-519516 | M145 | 2 | £350.89 | 5 days | |
| JBO-520083 | M148 | 2 | £359.66 | 5 days | |
| JBO-510149 | M150 | 2 | £365.15 | 5 days | |
| JBO-510391 | M42 | 3 | £102.98 | 5 days | |
| JBO-510402 | M45 | 3 | £108.78 | 5 days | |
| JBO-510418 | M48 | 3 | £115.14 | 5 days | |
| JBO-510441 | M50 | 3 | £150.21 | 5 days | |
| JBO-510450 | M52 | 3 | £123.91 | 5 days | |
| JBO-516616 | M55 | 3 | £149.13 | 5 days | |
| JBO-510462 | M56 | 3 | £148.02 | 5 days | |
| JBO-510468 | M58 | 3 | £155.70 | 5 days | |
| JBO-513226 | M60 | 3 | £159.00 | 5 days | |
| JBO-513528 | M62 | 3 | £166.67 | 5 days | |
| JBO-513531 | M64 | 3 | £166.67 | 5 days | |
| JBO-510498 | M65 | 3 | £168.86 | 5 days | |
| JBO-513536 | M68 | 3 | £182.03 | 5 days | |
| JBO-520102 | M70 | 3 | £183.12 | 5 days | |
| JBO-513126 | M72 | 3 | £186.41 | 5 days | |
| JBO-510515 | M75 | 3 | £198.46 | 5 days | |
| JBO-520103 | M76 | 3 | £199.57 | 5 days | |
| JBO-516626 | M80 | 3 | £209.44 | 5 days | |
| JBO-510549 | M85 | 3 | £223.68 | 5 days | |
| JBO-510563 | M90 | 3 | £235.75 | 5 days | |
| JBO-516857 | M95 | 3 | £250.01 | 5 days | |
| JBO-510091 | M100 | 3 | £264.27 | 5 days | |
| JBO-517741 | M105 | 3 | £276.31 | 5 days | |
| JBO-510104 | M110 | 3 | £287.29 | 5 days | |
| JBO-517090 | M115 | 3 | £303.75 | 5 days | |
| JBO-520104 | M120 | 3 | £314.71 | 5 days | |
| JBO-510123 | M125 | 3 | £327.86 | 5 days | |
| JBO-513757 | M130 | 3 | £342.12 | 5 days | |
| JBO-516892 | M135 | 3 | £356.38 | 5 days | |
| JBO-510145 | M140 | 3 | £370.62 | 5 days | |
| JBO-512979 | M145 | 3 | £384.88 | 5 days | |
| JBO-520105 | M150 | 3 | £398.03 | 5 days | |
| JBO-513506 | M52 | 4 | £141.45 | 5 days | |
| JBO-516925 | M55 | 4 | £160.09 | 5 days | |
| JBO-510463 | M56 | 4 | £148.02 | 5 days | |
| JBO-520106 | M58 | 4 | £161.19 | 5 days | |
| JBO-510487 | M60 | 4 | £159.00 | 5 days | |
| JBO-510490 | M62 | 4 | £163.39 | 5 days | |
| JBO-510495 | M64 | 4 | £166.67 | 5 days | |
| JBO-514098 | M65 | 4 | £168.86 | 5 days | |
| JBO-520107 | M68 | 4 | £178.73 | 5 days | |
| JBO-518830 | M72 | 4 | £186.41 | 5 days | |
| JBO-520109 | M75 | 4 | £198.46 | 5 days | |
| JBO-520110 | M76 | 4 | £199.57 | 5 days | |
| JBO-510545 | M80 | 4 | £209.44 | 5 days | |
| JBO-510550 | M85 | 4 | £223.68 | 5 days | |
| JBO-520111 | M90 | 4 | £235.75 | 5 days | |
| JBO-520112 | M95 | 4 | £250.01 | 5 days | |
| JBO-517074 | M100 | 4 | £264.27 | 5 days | |
| JBO-516044 | M105 | 4 | £276.31 | 5 days | |
| JBO-513659 | M110 | 4 | £287.29 | 5 days | |
| JBO-520113 | M115 | 4 | £303.75 | 5 days | |
| JBO-517003 | M120 | 4 | £314.71 | 5 days | |
| JBO-520114 | M125 | 4 | £327.86 | 5 days | |
| JBO-520115 | M130 | 4 | £342.12 | 5 days | |
| JBO-520116 | M135 | 4 | £356.38 | 5 days | |
| JBO-520117 | M140 | 4 | £370.62 | 5 days | |
| JBO-520118 | M145 | 4 | £384.88 | 5 days | |
| JBO-520119 | M150 | 4 | £398.03 | 5 days | |
| JBO-520120 | M70 | 6 | £200.65 | 5 days | |
| JBO-510510 | M72 | 6 | £203.95 | 5 days | |
| JBO-520122 | M76 | 6 | £210.53 | 5 days | |
| JBO-510542 | M80 | 6 | £223.68 | 5 days | |
| JBO-520123 | M85 | 6 | £237.94 | 5 days | |
| JBO-516631 | M90 | 6 | £253.31 | 5 days | |
| JBO-520124 | M95 | 6 | £270.84 | 5 days | |
| JBO-520125 | M100 | 6 | £284.00 | 5 days | |
| JBO-510388 | M42 | 1.5 | £104.29 | 5 days | |
| JBO-510398 | M45 | 1.5 | £108.12 | 5 days | |
| JBO-510413 | M48 | 1.5 | £117.33 | 5 days | |
| JBO-510437 | M50 | 1.5 | £120.61 | 5 days | |
| JBO-510447 | M52 | 1.5 | £124.99 | 5 days | |
| JBO-516615 | M55 | 1.5 | £137.06 | 5 days | |
| JBO-518946 | M56 | 1.5 | £141.45 | 5 days | |
| JBO-518533 | M58 | 1.5 | £145.83 | 5 days | |
| JBO-514813 | M60 | 1.5 | £148.02 | 5 days | |
| JBO-510390 | M42 | 2 | £107.15 | 5 days | |
| JBO-516609 | M45 | 2 | £114.03 | 5 days | |
| JBO-510416 | M48 | 2 | £123.91 | 5 days | |
| JBO-524417 | M50 | 2 | £128.29 | 5 days | |
| JBO-510449 | M52 | 2 | £132.68 | 5 days | |
| JBO-513206 | M55 | 2 | £150.21 | 5 days | |
| JBO-524418 | M56 | 2 | £145.83 | 5 days | |
| JBO-524419 | M58 | 2 | £145.83 | 5 days | |
| JBO-513540 | M60 | 2 | £151.32 | 5 days | |
| JBO-524475 | M62 | 2 | £168.86 | 5 days | |
| JBO-523684 | M64 | 2 | £174.35 | 5 days | |
| JBO-526516 | M65 | 2 | £172.16 | 5 days | |
| JBO-526518 | M68 | 2 | £177.65 | 5 days | |
| JBO-513441 | M70 | 2 | £182.03 | 5 days | |
| JBO-524469 | M72 | 2 | £187.50 | 5 days | |
| JBO-524470 | M75 | 2 | £196.27 | 5 days | |
| JBO-517395 | M76 | 2 | £202.87 | 5 days | |
| JBO-517904 | M78 | 2 | £212.72 | 5 days | |
| JBO-519864 | M80 | 2 | £209.44 | 5 days | |
| JBO-524471 | M82 | 2 | £224.79 | 5 days | |
| JBO-517009 | M85 | 2 | £219.30 | 5 days | |
| JBO-510387 | M42 | 1.5 | £112.95 | 5 days | |
| JBO-519782 | M45 | 1.5 | £115.14 | 5 days | |
| JBO-513661 | M48 | 1.5 | £131.59 | 5 days | |
| JBO-518897 | M50 | 1.5 | £127.21 | 5 days | |
| JBO-514158 | M52 | 1.5 | £130.48 | 5 days | |
| JBO-517423 | M55 | 1.5 | £144.74 | 5 days | |
| JBO-523163 | M56 | 1.5 | £154.62 | 5 days | |
| JBO-515466 | M58 | 1.5 | £152.43 | 5 days | |
| JBO-514890 | M60 | 1.5 | £160.09 | 5 days | |
| JBO-517118 | M42 | 2 | £116.23 | 5 days | |
| JBO-515068 | M45 | 2 | £123.91 | 5 days | |
| JBO-516610 | M48 | 2 | £129.40 | 5 days | |
| JBO-524420 | M50 | 2 | £142.55 | 5 days | |
| JBO-515069 | M52 | 2 | £141.45 | 5 days | |
| JBO-517064 | M55 | 2 | £155.70 | 5 days | |
| JBO-524421 | M56 | 2 | £160.09 | 5 days | |
| JBO-524422 | M58 | 2 | £164.47 | 5 days | |
| JBO-524423 | M60 | 2 | £163.39 | 5 days | |
| JBO-520040 | M42 | 1 | £130.48 | 5 days | |
| JBO-520041 | M45 | 1 | £137.06 | 5 days | |
| JBO-514651 | M48 | 1 | £149.13 | 5 days | |
| JBO-516867 | M50 | 1 | £154.62 | 5 days | |
| JBO-517230 | M52 | 1 | £161.19 | 5 days | |
| JBO-517232 | M55 | 1 | £169.96 | 5 days | |
| JBO-517234 | M56 | 1 | £167.77 | 5 days | |
| JBO-517237 | M58 | 1 | £185.31 | 5 days | |
| JBO-517240 | M60 | 1 | £195.18 | 5 days | |
| JBO-513097 | M42 | 1.5 | £107.03 | 5 days | |
| JBO-510399 | M45 | 1.5 | £112.95 | 5 days | |
| JBO-510414 | M48 | 1.5 | £122.80 | 5 days | |
| JBO-510438 | M50 | 1.5 | £123.91 | 5 days | |
| JBO-513500 | M52 | 1.5 | £128.29 | 5 days | |
| JBO-510455 | M55 | 1.5 | £141.45 | 5 days | |
| JBO-510460 | M56 | 1.5 | £143.64 | 5 days | |
| JBO-513186 | M58 | 1.5 | £152.43 | 5 days | |
| JBO-513227 | M60 | 1.5 | £160.09 | 5 days | |
| JBO-517283 | M62 | 1.5 | £163.39 | 5 days | |
| JBO-517060 | M64 | 1.5 | £169.96 | 5 days | |
| JBO-516618 | M65 | 1.5 | £174.35 | 5 days | |
| JBO-517284 | M68 | 1.5 | £174.35 | 5 days | |
| JBO-517285 | M70 | 1.5 | £180.92 | 5 days |
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