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JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M56 x 5.5
| Thread Form | Metric |
| Size | M56 |
| Pitch | 5.5 |
| Gauge Type | Plug Gauge (NoGo) |
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The ones our customers buy most.Description
The JBO Thread Plug Gauge (NoGo) — Metric Coarse, Right Hand, 6H, M56 x 5.5 — is a precision inspection tool for verifying threaded holes. Built for engineers, buyers, tradespeople, and quality teams, it ensures the correct fit and reliable function of mating parts by confirming holes meet the specified size and tolerance.
- NoGo verification for metric coarse threads: Quickly confirms holes meet the M56 x 5.5, 6H specifications, helping prevent out-of-tolerance parts from passing inspection.
- Rugged, hardened steel construction: Delivers long tool life and dependable performance in demanding workshop environments.
- Ergonomic, user-friendly design: Easy to use with precise measurements, supporting consistent results across operators and shifts.
Used as part of a disciplined quality control workflow, this gauge speeds up inspections and reduces rework by delivering clear pass/fail indications for threaded holes. Its durable build and precise sizing give you confidence in every assembly, helping maintain consistent fit, reliability, and workflow efficiency across production runs.
Part Numbers
- Protool Part Number
- JBO-510457
- Brand
- JBO
- Category
- Gauge
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.
Full Range: JBO Thread Plug Gauges (NoGo) - Metric Coarse
View full collection →You are viewing JBO-510457. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-510383 | M42 | 4.5 | £99.91 | 5 days | |
| JBO-510395 | M45 | 4.5 | £108.33 | 5 days | |
| JBO-510408 | M48 | 5 | £116.23 | 5 days | |
| JBO-510444 | M52 | 5 | £124.99 | 5 days | |
| JBO-510457 Viewing | M56 | 5.5 | £137.06 | 5 days | |
| JBO-510482 | M60 | 5.5 | £155.70 | 5 days | |
| JBO-510492 | M64 | 6 | £171.05 | 5 days | |
| JBO-513505 | M68 | 6 | £180.92 | 5 days | |
| JBO-514600 | M42 | 4.5 | £126.10 | 5 days | |
| JBO-516961 | M45 | 4.5 | £134.87 | 5 days | |
| JBO-510409 | M48 | 5 | £148.02 | 5 days | |
| JBO-517178 | M52 | 5 | £159.00 | 5 days |
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