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JBO Thread Plug Gauge (GO) - BSP (G) - Left Hand - 1 1/2 x 11

SKU:JBO-513942

The JBO Thread Plug Gauge (GO) is a precision tool for verifying BSP (G) threaded pipe connections. It’s designed for a wide audience—plumbers, engineers, technicians, buyers, and tradespeople—wh... Read more ↓
Thread FormBSP (G)
Size1 1/2
Pitch11
Gauge TypePlug Gauge (GO)
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£149.13
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

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Description

The JBO Thread Plug Gauge (GO) is a precision tool for verifying BSP (G) threaded pipe connections. It’s designed for a wide audience—plumbers, engineers, technicians, buyers, and tradespeople—who need fast, reliable confirmation that fittings will seal correctly.

This GO gauge is sized 1 1/2 x 11 and configured for Left Hand BSP threads, enabling quick validation of left-handed fittings and preventing mismatches in critical piping systems.

  • Go Gauge Design for Quick Conformance Checks: The GO orientation lets you rapidly confirm that threads meet BSP (G) standards, speeding up inspections and reducing rework by clearly indicating when a fit is correct.
  • Precisely Machined BSP (G) Size 1 1/2 x 11: Meticulous dimensions deliver repeatable measurements across fittings, helping ensure reliable sealing and consistent test results.
  • Left-Hand Thread Compatibility: Specifically built for left-handed BSP threads, expanding your testing coverage and preventing mismatches in specialty piping applications.

Using the JBO Thread Plug Gauge (GO) streamlines threaded-pipe inspections, reducing downtime by quickly identifying conforming threads and supporting quality control across plumbing, fluid handling, and engineering workflows. With its precise dimensions and targeted left-hand BSP compatibility, you can trust every test to indicate accurate fitment and sealing capability, helping you deliver reliable assemblies and faster project turnaround.

Part Numbers

Protool Part Number
JBO-513942
Brand
JBO
Category
Gauge
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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

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: JBO Thread Plug Gauges (GO) - BSP (G)

View full collection →

You are viewing JBO-513942. Click any other SKU to view its full details.

Product SKUSizePitchPriceStock Order
JBO-510764 1 1/411£97.16 5 days
JBO-510763 1 1/211£111.84 5 days
JBO-510767 1 3/411£133.78 5 days
JBO-510786 211£141.45 5 days
JBO-510789 2 1/411£169.96 5 days
JBO-510788 2 1/211£176.54 5 days
JBO-510790 2 3/411£208.34 5 days
JBO-510791 311£207.25 5 days
JBO-510792 3 1/211£250.01 5 days
JBO-510798 411£298.26 5 days
JBO-520129 4 1/211£377.19 5 days
JBO-516657 511£415.59 5 days
JBO-520130 5 1/211£449.58 5 days
JBO-516658 611£493.44 5 days
JBO-510765 1 1/411£126.10 5 days
JBO-513942 Viewing1 1/211£149.13 5 days
JBO-517311 1 3/411£174.35 5 days
JBO-510787 211£184.22 5 days
JBO-517312 2 1/411£221.49 5 days
JBO-517313 2 1/211£232.47 5 days
JBO-517314 2 3/411£257.69 5 days
JBO-517315 311£273.04 5 days

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