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VCOIL Plug Gauge (D/E) - UNF (STI) - Heli Coil Gauge - Right Hand - 2B - 3/4 x 16

SKU:TC-19834

The VCOIL Plug Gauge is a precision go/no-go instrument designed for professionals checking UNF (STI) right-hand threads in Helicoil applications. Sized for 3/4 x 16 and rated 2B, this gauge ensur... Read more ↓
Thread FormUNF (STI)
Size3/4
Pitch16
Gauge TypePlug Gauge (D/E)
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£169.60
Prices shown ex. VAT
7 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
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

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Description

The VCOIL Plug Gauge is a precision go/no-go instrument designed for professionals checking UNF (STI) right-hand threads in Helicoil applications. Sized for 3/4 x 16 and rated 2B, this gauge ensures components meet ANSI/ASME thread standards with clear go/no-go checks.

  • UNF Thread Size: 3/4 x 16, right-hand UNF thread gauge for STI Helicoil applications
  • Go / No-Go Design: Combines go and no-go plug gauge functionality to verify thread acceptance and rejection criteria
  • Scrap Identification: Scrap side marked with a red ring for quick distinction during inspection
  • Tolerance Class: 2B class for precise plug gauge performance and consistency across checks
  • Standards Compliance: Manufactured and assessed to ANSI/ASME thread standards for reliable results
  • Reference Temperature: Parts and gauges referenced at 20°C to ensure consistency in measurements

With the VCOIL Plug Gauge, you gain confidence that threaded holes and inserts meet spec, reducing rework and fit issues. The hand-screw go test ensures easy, torque-free validation, while the controlled no-go end prevents over-threads, supporting durable Helicoil installations. Clear scrap marking and a defined 20°C reference help maintain consistent quality during routine inspections and calibration.

Part Numbers

Protool Part Number
TC-19834
Brand
VCOIL
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: VCOIL Plug Gauges UNF (STI)

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You are viewing TC-19834. Click any other SKU to view its full details.

Product SKUSizePitchPriceStock Order
TC-19823 No. 448£102.03 In Stock
TC-19824 No. 640£102.03 In Stock
TC-19825 No. 836£98.05 In Stock
TC-19826 No. 1032£98.05 7 days
TC-19827 1/428£95.40 7 days
TC-19828 5/1624£99.38 7 days
TC-19829 3/824£103.35 7 days
TC-19830 7/1620£108.65 In Stock
TC-19831 1/220£113.95 7 days
TC-19832 9/1618£123.23 In Stock
TC-19833 5/818£137.80 In Stock
TC-19834 Viewing3/416£169.60 7 days
TC-19835 7/814£184.18 7 days
TC-19836 112£221.28 7 days
TC-19837 114£221.28 7 days
TC-19838 1.1/812£221.28 7 days
TC-19839 1.1/412£257.05 7 days
TC-19840 1.3/812£166.95 7 days
TC-19841 1.3/812£166.95 7 days
TC-19842 1.1/212£194.78 7 days
TC-19843 1.1/212£194.78 7 days
TC-19923 No. 448£121.90 7 days
TC-19924 No. 640£121.90 7 days
TC-19925 No. 836£116.60 7 days
TC-19926 No. 1032£116.60 7 days
TC-19927 1/428£115.28 7 days
TC-19928 5/1624£119.25 7 days
TC-19929 3/824£123.23 7 days
TC-19930 7/1620£129.85 7 days
TC-19931 1/220£136.48 7 days
TC-19932 9/1618£148.40 7 days
TC-19933 5/818£165.63 7 days
TC-19934 3/416£202.73 7 days
TC-19935 7/814£221.28 7 days
TC-19936 112£265.00 7 days
TC-19937 114£265.00 7 days
TC-19938 1.1/812£265.00 7 days
TC-19939 1.1/412£308.73 7 days
TC-19940 1.3/812£201.40 7 days
TC-19941 1.3/812£201.40 7 days
TC-19942 1.1/212£234.53 7 days
TC-19943 1.1/212£234.53 7 days

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