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JBO Thread Ring Gauge (Go/NoGo) - NPTF - Right Hand - 1 1/2 x 11.5
| Thread Form | NPTF |
| Size | 1 1/2 |
| Pitch | 11.5 |
| Gauge Type | Ring Gauge (Go/NoGo) |
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The ones our customers buy most.Description
The JBO Thread Ring Gauge (Go/NoGo) for NPTF is a precision inspection tool crafted to verify National Pipe Taper Fuel thread accuracy. Built for right-hand NPTF threads, its go/no-go design lets you rapidly determine whether a fitting meets the standard, enabling fast, reliable pass/fail decisions on every part.
Sized for 1 1/2 x 11.5 and suitable for automotive, hydraulic, and fluid-power workflows, this gauge supports quick setup, consistent inspections, and confident sealing performance across batches. Use it in incoming quality checks, in-process testing, or field service to ensure threaded joints thread smoothly and seal reliably.
- Go/NoGo quick conformance checks: Speeds inspections by instantly indicating whether a thread is within tolerance, reducing guesswork, rework, and downtime.
- NPTF-standard precision: Specifically engineered to match NPTF thread dimensions, giving reliable measurements and consistent joint performance across fittings.
- Right-hand, 1 1/2 x 11.5 size with ergonomic handling: Designed for standard right-hand threads and common pipe fittings, making checks straightforward and repeatable in busy work environments.
With the JBO Thread Ring Gauge, you gain a dependable, repeatable method to verify thread quality, speed up production, and minimize the risk of leaks from poorly seated joints. The go/no-go clarity helps teams make faster decisions, improves workflow consistency, and supports quality control across batches. Whether used on the shop floor, in a maintenance bay, or in a service vehicle, this NPTF Go/NoGo gauge delivers confidence that every connection will meet the required standards and seal correctly.
Part Numbers
- Protool Part Number
- JBO-503480
- 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 (Go/NoGo) - NPTF
View full collection →You are viewing JBO-503480. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-505811 | 1/16 | 27 | £315.79 | 5 days | |
| JBO-502700 | 1/8 | 27 | £290.57 | 5 days | |
| JBO-502699 | 1/4 | 18 | £300.45 | 5 days | |
| JBO-502702 | 3/8 | 18 | £313.60 | 5 days | |
| JBO-502698 | 1/2 | 14 | £339.93 | 5 days | |
| JBO-502701 | 3/4 | 14 | £375.00 | 5 days | |
| JBO-502697 | 1 | 11.5 | £424.36 | 5 days | |
| JBO-503479 | 1 1/4 | 11.5 | £495.63 | 5 days | |
| JBO-503480 Viewing | 1 1/2 | 11.5 | £546.07 | 5 days | |
| JBO-505713 | 2 | 11.5 | £666.68 | 5 days | |
| JBO-505885 | 2 1/2 | 8 | £764.28 | 5 days | |
| JBO-505886 | 3 | 8 | £977.00 | 5 days |
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