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VCOIL Plug Gauge (D/E) - BSP (STI) - Heli Coil Gauge - Right Hand - 1/8 x 28
| Thread Form | BSP (STI) |
| Size | 1/8 |
| Pitch | 28 |
| Gauge Type | Plug Gauge (D/E) |
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The ones our customers buy most.Description
The VCOIL Plug Gauge is a precision go/no-go thread gauge crafted for Helicoil/BSP (STI) right-hand threads at 1/8 x 28. It’s designed to reliably verify ANSI/ASME standard threads with a quick, hand-operated check.
- Size/Thread: 1/8 x 28 BSP (STI) right-hand thread verification
- Go/No-Go thread gauge: Combines a go end and a no-go end to confirm both acceptance and rejection limits in one tool
- Scrap side marked: Red ring on the scrap side for fast identification during inspections
- ANSI/ASME standards compliant: Manufactured and assessed in accordance with the relevant ANSI/ASME thread system
- Hand-thread test criteria: Go end must screw into the thread cut by hand without excessive force
- Scrap limit: Scrap end must not be able to be turned more than two turns into the cut thread without excessive force
- Reference temperature: Parts and gauges refer to 20°C for consistency
Benefits: This single gauge streamlines thread verification for Helicoil applications, delivering clear go/no-go results that align with ANSI/ASME standards. By confirming both the minimum and maximum thread limits, it helps prevent cross-threading, improper inserts, and assembly delays. The red scrap indicator and standardized 20°C reference support consistent quality control across maintenance and manufacturing workflows.
Part Numbers
- Protool Part Number
- TC-19881
- 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 BSP (STI)
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