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JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M42 x 1
SKU:JBO-513222
The JBO Thread Plug Gauge (GO) is a precision go/no-go tool for inspecting internal threads in holes. Designed for metric fine threads, it verifies M42 x 1 left-hand threads to ensure holes meet t...
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Specifications at a glance
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| Thread Form | Metric |
| Size | M42 |
| Pitch | 1 |
| Gauge Type | Plug Gauge (GO) |
£141.45
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 (GO) is a precision go/no-go tool for inspecting internal threads in holes. Designed for metric fine threads, it verifies M42 x 1 left-hand threads to ensure holes meet the 6H tolerance, supporting quick, accurate quality checks across manufacturing, assembly, and maintenance environments.
- Accurate GO verification for M42 x 1 metric fine left-hand threads: Fast go/no-go checks that confirm holes meet the 6H tolerance, reducing guesswork and rework in quality control.
- Hardened steel construction for durable, long-lasting use: Resists wear in busy workshops and maintains precision over many inspections and cycles.
- Ergonomic knurled design for easy handling: Secure grip and quick orientation in tight spaces or with gloves, speeding up checks and improving consistency.
By using this gauge, you gain faster, more reliable hole inspections, smoother QC workflows, and confidence that your M42 x 1 left-hand threaded holes meet specification every time. Its durable build and user-friendly design integrate seamlessly into existing inspection routines, helping teams reduce downtime, improve part consistency, and maintain high standards across production and maintenance tasks.
Part Numbers
- Protool Part Number
- JBO-513222
- 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 (GO) - Metric Fine
View full collection →You are viewing JBO-513222. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-511113 | M42 | 1 | £106.37 | 5 days | |
| JBO-511123 | M45 | 1 | £114.03 | 5 days | |
| JBO-511138 | M48 | 1 | £121.72 | 5 days | |
| JBO-511165 | M50 | 1 | £127.21 | 5 days | |
| JBO-511175 | M52 | 1 | £131.59 | 5 days | |
| JBO-513565 | M55 | 1 | £143.64 | 5 days | |
| JBO-511188 | M56 | 1 | £145.83 | 5 days | |
| JBO-511194 | M58 | 1 | £153.51 | 5 days | |
| JBO-511212 | M60 | 1 | £160.09 | 5 days | |
| JBO-513478 | M62 | 1 | £184.22 | 5 days | |
| JBO-513730 | M64 | 1 | £187.50 | 5 days | |
| JBO-514015 | M65 | 1 | £194.08 | 5 days | |
| JBO-511228 | M68 | 1 | £202.87 | 5 days | |
| JBO-511239 | M70 | 1 | £208.34 | 5 days | |
| JBO-520030 | M72 | 1 | £213.83 | 5 days | |
| JBO-520031 | M75 | 1 | £230.28 | 5 days | |
| JBO-511249 | M76 | 1 | £231.36 | 5 days | |
| JBO-520032 | M78 | 1 | £244.52 | 5 days | |
| JBO-511273 | M80 | 1 | £242.33 | 5 days | |
| JBO-511114 | M42 | 1.5 | £92.54 | 5 days | |
| JBO-511124 | M45 | 1.5 | £98.14 | 5 days | |
| JBO-511140 | M48 | 1.5 | £104.06 | 5 days | |
| JBO-511166 | M50 | 1.5 | £107.03 | 5 days | |
| JBO-511176 | M52 | 1.5 | £111.84 | 5 days | |
| JBO-511184 | M55 | 1.5 | £118.42 | 5 days | |
| JBO-511189 | M56 | 1.5 | £120.61 | 5 days | |
| JBO-511195 | M58 | 1.5 | £124.99 | 5 days | |
| JBO-511213 | M60 | 1.5 | £129.40 | 5 days | |
| JBO-511216 | M62 | 1.5 | £132.68 | 5 days | |
| JBO-511219 | M64 | 1.5 | £139.25 | 5 days | |
| JBO-511223 | M65 | 1.5 | £144.74 | 5 days | |
| JBO-511229 | M68 | 1.5 | £149.13 | 5 days | |
| JBO-511240 | M70 | 1.5 | £152.43 | 5 days | |
| JBO-511243 | M72 | 1.5 | £162.28 | 5 days | |
| JBO-511247 | M75 | 1.5 | £168.86 | 5 days | |
| JBO-511250 | M76 | 1.5 | £210.53 | 5 days | |
| JBO-511252 | M78 | 1.5 | £174.35 | 5 days | |
| JBO-511274 | M80 | 1.5 | £179.84 | 5 days | |
| JBO-511278 | M82 | 1.5 | £184.22 | 5 days | |
| JBO-511280 | M85 | 1.5 | £191.89 | 5 days | |
| JBO-516722 | M88 | 1.5 | £198.46 | 5 days | |
| JBO-511296 | M90 | 1.5 | £201.76 | 5 days | |
| JBO-513057 | M92 | 1.5 | £208.34 | 5 days | |
| JBO-511302 | M95 | 1.5 | £211.63 | 5 days | |
| JBO-520042 | M98 | 1.5 | £275.23 | 5 days | |
| JBO-510837 | M100 | 1.5 | £224.79 | 5 days | |
| JBO-510840 | M102 | 1.5 | £277.42 | 5 days | |
| JBO-516858 | M105 | 1.5 | £235.75 | 5 days | |
| JBO-520044 | M108 | 1.5 | £293.87 | 5 days | |
| JBO-510850 | M110 | 1.5 | £246.71 | 5 days | |
| JBO-510853 | M112 | 1.5 | £298.26 | 5 days | |
| JBO-520045 | M115 | 1.5 | £307.02 | 5 days | |
| JBO-520046 | M118 | 1.5 | £314.71 | 5 days | |
| JBO-520047 | M120 | 1.5 | £319.09 | 5 days | |
| JBO-516664 | M122 | 1.5 | £345.40 | 5 days | |
| JBO-520048 | M125 | 1.5 | £335.54 | 5 days | |
| JBO-510875 | M128 | 1.5 | £360.76 | 5 days | |
| JBO-517861 | M130 | 1.5 | £348.70 | 5 days | |
| JBO-518665 | M132 | 1.5 | £354.19 | 5 days | |
| JBO-520049 | M135 | 1.5 | £370.62 | 5 days | |
| JBO-520050 | M138 | 1.5 | £381.60 | 5 days | |
| JBO-520051 | M140 | 1.5 | £384.88 | 5 days | |
| JBO-518196 | M142 | 1.5 | £382.68 | 5 days | |
| JBO-520052 | M145 | 1.5 | £400.22 | 5 days | |
| JBO-520053 | M148 | 1.5 | £406.82 | 5 days | |
| JBO-518077 | M150 | 1.5 | £414.48 | 5 days | |
| JBO-511116 | M42 | 2 | £95.08 | 5 days | |
| JBO-511128 | M45 | 2 | £101.00 | 5 days | |
| JBO-511144 | M48 | 2 | £106.91 | 5 days | |
| JBO-511169 | M50 | 2 | £110.75 | 5 days | |
| JBO-511178 | M52 | 2 | £115.14 | 5 days | |
| JBO-511186 | M55 | 2 | £121.72 | 5 days | |
| JBO-511191 | M56 | 2 | £123.91 | 5 days | |
| JBO-511196 | M58 | 2 | £128.29 | 5 days | |
| JBO-511214 | M60 | 2 | £132.68 | 5 days | |
| JBO-511217 | M62 | 2 | £137.06 | 5 days | |
| JBO-511220 | M64 | 2 | £143.64 | 5 days | |
| JBO-511224 | M65 | 2 | £149.13 | 5 days | |
| JBO-511230 | M68 | 2 | £152.43 | 5 days | |
| JBO-511241 | M70 | 2 | £157.90 | In Stock | |
| JBO-511244 | M72 | 2 | £162.28 | 5 days | |
| JBO-511248 | M75 | 2 | £168.86 | 5 days | |
| JBO-511251 | M76 | 2 | £179.84 | 5 days | |
| JBO-511253 | M78 | 2 | £183.12 | 5 days | |
| JBO-511275 | M80 | 2 | £179.84 | 5 days | |
| JBO-511279 | M82 | 2 | £194.08 | 5 days | |
| JBO-511281 | M85 | 2 | £194.08 | 5 days | |
| JBO-511284 | M88 | 2 | £211.63 | 5 days | |
| JBO-511297 | M90 | 2 | £201.76 | 5 days | |
| JBO-511301 | M92 | 2 | £207.25 | 5 days | |
| JBO-511303 | M95 | 2 | £211.63 | 5 days | |
| JBO-511304 | M98 | 2 | £219.30 | 5 days | |
| JBO-510838 | M100 | 2 | £224.79 | 5 days | |
| JBO-526463 | M102 | 2 | £280.72 | 5 days | |
| JBO-510842 | M105 | 2 | £235.75 | 5 days | |
| JBO-520069 | M108 | 2 | £296.06 | 5 days | |
| JBO-510851 | M110 | 2 | £246.71 | 5 days | |
| JBO-516663 | M112 | 2 | £303.75 | 5 days | |
| JBO-510854 | M115 | 2 | £307.02 | 5 days | |
| JBO-518905 | M118 | 2 | £321.28 | 5 days | |
| JBO-510872 | M120 | 2 | £319.09 | 5 days | |
| JBO-510873 | M122 | 2 | £345.40 | 5 days | |
| JBO-515033 | M125 | 2 | £335.54 | 5 days | |
| JBO-514954 | M128 | 2 | £345.40 | 5 days | |
| JBO-514063 | M130 | 2 | £348.70 | 5 days | |
| JBO-510880 | M132 | 2 | £354.19 | 5 days | |
| JBO-510881 | M135 | 2 | £361.85 | 5 days | |
| JBO-520071 | M138 | 2 | £373.92 | 5 days | |
| JBO-510897 | M140 | 2 | £377.19 | 5 days | |
| JBO-516669 | M142 | 2 | £382.68 | 5 days | |
| JBO-518907 | M145 | 2 | £391.45 | 5 days | |
| JBO-516670 | M148 | 2 | £400.22 | 5 days | |
| JBO-510904 | M150 | 2 | £405.71 | 5 days | |
| JBO-511118 | M42 | 3 | £111.84 | 5 days | |
| JBO-511130 | M45 | 3 | £117.33 | 5 days | |
| JBO-511148 | M48 | 3 | £123.91 | 5 days | |
| JBO-513534 | M50 | 3 | £166.67 | 5 days | |
| JBO-511179 | M52 | 3 | £132.68 | 5 days | |
| JBO-516710 | M55 | 3 | £164.47 | 5 days | |
| JBO-511192 | M56 | 3 | £163.39 | 5 days | |
| JBO-511197 | M58 | 3 | £172.16 | 5 days | |
| JBO-513225 | M60 | 3 | £176.54 | 5 days | |
| JBO-513529 | M62 | 3 | £184.22 | 5 days | |
| JBO-513530 | M64 | 3 | £184.22 | 5 days | |
| JBO-511225 | M65 | 3 | £186.41 | 5 days | |
| JBO-511231 | M68 | 3 | £201.76 | 5 days | |
| JBO-520084 | M70 | 3 | £203.95 | 5 days | |
| JBO-513125 | M72 | 3 | £209.44 | 5 days | |
| JBO-516235 | M75 | 3 | £220.40 | 5 days | |
| JBO-520085 | M76 | 3 | £222.60 | 5 days | |
| JBO-516720 | M80 | 3 | £232.47 | 5 days | |
| JBO-511282 | M85 | 3 | £246.71 | 5 days | |
| JBO-511298 | M90 | 3 | £264.27 | 5 days | |
| JBO-516856 | M95 | 3 | £278.53 | 5 days | |
| JBO-510839 | M100 | 3 | £289.49 | 5 days | |
| JBO-517703 | M105 | 3 | £307.02 | 5 days | |
| JBO-510852 | M110 | 3 | £319.09 | 5 days | |
| JBO-517089 | M115 | 3 | £336.63 | 5 days | |
| JBO-516880 | M120 | 3 | £349.78 | 5 days | |
| JBO-510874 | M125 | 3 | £362.95 | 5 days | |
| JBO-513756 | M130 | 3 | £379.41 | 5 days | |
| JBO-516891 | M135 | 3 | £395.84 | 5 days | |
| JBO-510898 | M140 | 3 | £409.01 | 5 days | |
| JBO-512978 | M145 | 3 | £427.63 | 5 days | |
| JBO-520086 | M150 | 3 | £443.00 | 5 days | |
| JBO-513507 | M52 | 4 | £155.70 | 5 days | |
| JBO-516924 | M55 | 4 | £177.65 | 5 days | |
| JBO-511193 | M56 | 4 | £163.39 | 5 days | |
| JBO-520087 | M58 | 4 | £178.73 | 5 days | |
| JBO-511215 | M60 | 4 | £176.54 | 5 days | |
| JBO-513532 | M62 | 4 | £180.92 | 5 days | |
| JBO-511222 | M64 | 4 | £184.22 | 5 days | |
| JBO-520088 | M65 | 4 | £186.41 | 5 days | |
| JBO-518916 | M68 | 4 | £198.46 | 5 days | |
| JBO-514296 | M70 | 4 | £203.95 | 5 days | |
| JBO-511245 | M72 | 4 | £209.44 | 5 days | |
| JBO-520090 | M75 | 4 | £220.40 | 5 days | |
| JBO-517001 | M76 | 4 | £222.60 | 5 days | |
| JBO-511277 | M80 | 4 | £232.47 | 5 days | |
| JBO-511283 | M85 | 4 | £246.71 | 5 days | |
| JBO-516724 | M90 | 4 | £264.27 | 5 days | |
| JBO-517005 | M95 | 4 | £278.53 | 5 days | |
| JBO-514222 | M100 | 4 | £289.49 | 5 days | |
| JBO-514223 | M105 | 4 | £307.02 | 5 days | |
| JBO-513658 | M110 | 4 | £320.18 | 5 days | |
| JBO-520091 | M115 | 4 | £336.63 | 5 days | |
| JBO-517002 | M120 | 4 | £349.78 | 5 days | |
| JBO-516665 | M125 | 4 | £362.95 | 5 days | |
| JBO-520092 | M130 | 4 | £379.41 | 5 days | |
| JBO-520093 | M135 | 4 | £395.84 | 5 days | |
| JBO-520094 | M140 | 4 | £409.01 | 5 days | |
| JBO-520095 | M145 | 4 | £427.63 | 5 days | |
| JBO-517006 | M150 | 4 | £443.00 | 5 days | |
| JBO-520096 | M70 | 6 | £223.68 | 5 days | |
| JBO-511242 | M72 | 6 | £228.09 | 5 days | |
| JBO-518716 | M76 | 6 | £233.56 | 5 days | |
| JBO-514186 | M80 | 6 | £246.71 | 5 days | |
| JBO-515444 | M85 | 6 | £266.46 | 5 days | |
| JBO-511299 | M90 | 6 | £289.49 | 5 days | |
| JBO-520100 | M95 | 6 | £300.45 | 5 days | |
| JBO-520101 | M100 | 6 | £315.79 | 5 days | |
| JBO-511115 | M42 | 1.5 | £112.95 | 5 days | |
| JBO-511126 | M45 | 1.5 | £117.33 | 5 days | |
| JBO-511142 | M48 | 1.5 | £127.21 | 5 days | |
| JBO-511167 | M50 | 1.5 | £130.48 | 5 days | |
| JBO-511177 | M52 | 1.5 | £134.87 | 5 days | |
| JBO-518531 | M55 | 1.5 | £150.21 | 5 days | |
| JBO-518947 | M56 | 1.5 | £152.43 | 5 days | |
| JBO-518532 | M58 | 1.5 | £157.90 | 5 days | |
| JBO-514812 | M60 | 1.5 | £160.09 | 5 days | |
| JBO-511117 | M42 | 2 | £116.23 | 5 days | |
| JBO-516705 | M45 | 2 | £123.91 | 5 days | |
| JBO-511146 | M48 | 2 | £133.78 | 5 days | |
| JBO-526427 | M50 | 2 | £139.25 | 5 days | |
| JBO-514336 | M52 | 2 | £144.74 | 5 days | |
| JBO-513205 | M55 | 2 | £161.19 | 5 days | |
| JBO-526428 | M56 | 2 | £157.90 | 5 days | |
| JBO-526429 | M58 | 2 | £159.00 | 5 days | |
| JBO-513539 | M60 | 2 | £164.47 | 5 days | |
| JBO-526523 | M62 | 2 | £182.03 | 5 days | |
| JBO-523683 | M64 | 2 | £187.50 | 5 days | |
| JBO-526515 | M65 | 2 | £185.31 | 5 days | |
| JBO-526517 | M68 | 2 | £191.89 | 5 days | |
| JBO-516911 | M70 | 2 | £198.46 | 5 days | |
| JBO-518205 | M72 | 2 | £203.95 | 5 days | |
| JBO-526519 | M75 | 2 | £211.63 | 5 days | |
| JBO-518362 | M76 | 2 | £221.49 | 5 days | |
| JBO-517903 | M78 | 2 | £231.36 | 5 days | |
| JBO-511276 | M80 | 2 | £226.98 | 5 days | |
| JBO-526520 | M82 | 2 | £243.43 | 5 days | |
| JBO-513955 | M85 | 2 | £235.75 | 5 days | |
| JBO-518813 | M42 | 1.5 | £121.72 | 5 days | |
| JBO-511125 | M45 | 1.5 | £126.10 | 5 days | |
| JBO-511141 | M48 | 1.5 | £144.74 | 5 days | |
| JBO-523377 | M50 | 1.5 | £137.06 | 5 days | |
| JBO-514157 | M52 | 1.5 | £143.64 | 5 days | |
| JBO-526426 | M55 | 1.5 | £157.90 | 5 days | |
| JBO-523162 | M56 | 1.5 | £167.77 | 5 days | |
| JBO-515462 | M58 | 1.5 | £166.67 | 5 days | |
| JBO-514064 | M60 | 1.5 | £172.16 | 5 days | |
| JBO-515066 | M42 | 2 | £126.10 | 5 days | |
| JBO-515067 | M45 | 2 | £132.68 | 5 days | |
| JBO-511145 | M48 | 2 | £142.55 | 5 days | |
| JBO-526430 | M50 | 2 | £153.51 | 5 days | |
| JBO-514105 | M52 | 2 | £152.43 | 5 days | |
| JBO-517063 | M55 | 2 | £169.96 | 5 days | |
| JBO-526431 | M56 | 2 | £172.16 | 5 days | |
| JBO-526432 | M58 | 2 | £178.73 | 5 days | |
| JBO-526433 | M60 | 2 | £177.65 | 5 days | |
| JBO-513222 Viewing | M42 | 1 | £141.45 | 5 days | |
| JBO-513673 | M45 | 1 | £151.32 | 5 days | |
| JBO-514650 | M48 | 1 | £162.28 | 5 days | |
| JBO-516866 | M50 | 1 | £168.86 | 5 days | |
| JBO-517229 | M52 | 1 | £176.54 | 5 days | |
| JBO-517231 | M55 | 1 | £185.31 | 5 days | |
| JBO-517233 | M56 | 1 | £182.03 | 5 days | |
| JBO-517235 | M58 | 1 | £202.87 | 5 days | |
| JBO-517239 | M60 | 1 | £210.53 | 5 days | |
| JBO-513096 | M42 | 1.5 | £116.23 | 5 days | |
| JBO-511127 | M45 | 1.5 | £123.91 | 5 days | |
| JBO-511143 | M48 | 1.5 | £132.68 | 5 days | |
| JBO-511168 | M50 | 1.5 | £133.78 | 5 days | |
| JBO-513626 | M52 | 1.5 | £141.45 | 5 days | |
| JBO-511185 | M55 | 1.5 | £152.43 | 5 days | |
| JBO-511190 | M56 | 1.5 | £155.70 | 5 days | |
| JBO-513185 | M58 | 1.5 | £166.67 | 5 days | |
| JBO-513228 | M60 | 1.5 | £172.16 | 5 days | |
| JBO-517276 | M62 | 1.5 | £177.65 | 5 days | |
| JBO-517059 | M64 | 1.5 | £183.12 | 5 days | |
| JBO-514678 | M65 | 1.5 | £188.61 | 5 days |
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