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VCOIL Plug Gauge (D/E) - BSF (STI) - Heli Coil Gauge - Right Hand - Medium - 9/16 x 16
| Thread Form | BSF (STI) |
| Size | 9/16 |
| Pitch | 16 |
| Gauge Type | Plug Gauge (D/E) |
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The ones our customers buy most.Description
VCOIL Plug Gauge (D/E) is a precision right-hand BSF (STI) thread plug gauge designed for go/no-go checks in helicoil applications. It adheres to ANSI/ASME thread standards and is built for reliable inspection at a 20°C reference temperature.
- End type: Dual-ended go/no-go thread plug gauge for right-hand BSF (STI) threads
- Standards: Manufactured and assessed to ANSI/ASME thread system requirements
- Scrap marking: Scrap side is clearly marked with a red ring for instant identification
- Go end operation: Must screw into the thread cut into a part by hand without excessive force
- No-Go end operation: Scrap end should not be manually turned more than two turns into the cut thread
- Reference temperature: Parts and gauges reference temperature is 20°C
- Compatibility: BSF (British Standard Fine) (STI) thread classification
- Size/Handedness: Size 9/16 x 16; right-hand orientation
This plug gauge provides precise, repeatable checks to confirm thread quality before production or assembly. By combining go and no-go criteria with a clear scrap indication, it helps prevent incorrect thread fits and reduces rework. The hand-screw verification ensures controlled testing, while the standardized temperature reference supports consistent measurements across environments.
Part Numbers
- Protool Part Number
- TC-19876
- Brand
- VCOIL
- 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: VCOIL Plug Gauges BSF (STI)
View full collection →You are viewing TC-19876. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| TC-19870 | 3/16 | 32 | £119.25 | In Stock | |
| TC-19871 | 1/4 | 26 | £119.25 | In Stock | |
| TC-19872 | 5/16 | 22 | £119.25 | In Stock | |
| TC-19873 | 3/8 | 20 | £137.80 | In Stock | |
| TC-19874 | 7/16 | 18 | £129.85 | In Stock | |
| TC-19875 | 1/2 | 16 | £176.23 | In Stock | |
| TC-19876 Viewing | 9/16 | 16 | £188.15 | In Stock | |
| TC-19877 | 5/8 | 14 | £209.35 | In Stock | |
| TC-19878 | 3/4 | 12 | £221.28 | In Stock | |
| TC-19879 | 7/8 | 11 | £231.88 | 7 days | |
| TC-19880 | 1 | 11 | £298.13 | 7 days |
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