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JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M68 x 2
SKU:JBO-516621
The JBO Thread Plug Gauge (NoGo) — Metric Fine — Left Hand, 6H, M68 x 2 is a precision measuring instrument designed to verify the size and condition of metric fine threaded holes. It’s an essent...
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Specifications at a glance
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| Thread Form | Metric |
| Size | M68 |
| Pitch | 2 |
| Gauge Type | Plug Gauge (NoGo) |
£185.31
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
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Description
The JBO Thread Plug Gauge (NoGo) — Metric Fine — Left Hand, 6H, M68 x 2 is a precision measuring instrument designed to verify the size and condition of metric fine threaded holes. It’s an essential tool for machinists, quality inspectors, and tooling teams who need fast, dependable checks to ensure parts meet exact thread specifications.
Built for durability in busy workshops, this LH metric fine plug gauge is crafted from hardened steel and finished with a knurled body for secure handling. Its compact, robust design makes it a reliable choice for everyday inspection in manufacturing, maintenance, and assembly environments.
- Left-Hand Metric Fine Thread Design: Specifically engineered to fit left-hand metric fine holes (M68 x 2), enabling accurate, trouble-free inspection of LH threaded components.
- NoGo Gauge for Fast, Confident Validation: Designed to prevent over-insertion, delivering quick, decisive checks that help confirm holes stay within their maximum size specification and reduce rework.
- Rugged Hardened Steel Construction: Built to endure rigorous use in demanding environments, with a knurled grip that provides secure handling and precise, repeatable measurements over time.
This gauge supports reliable quality control by delivering consistent measurements on metric fine threads, helping you streamline hole inspection, cut downtime, and maintain exacting standards across parts and assemblies. With its durable construction and purpose-built LH design, it’s a dependable addition to any inspection or machining workflow.
Part Numbers
- Protool Part Number
- JBO-516621
- 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-516621. 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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