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Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - UNC - 1 x 8
| Thread Form | UNC |
| Size | 1 |
| Pitch | 8 |
| Lead | Bottoming Tap (STI) |
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Description
The Baer Heli Coil Tap is the dedicated tool for restoring and reinforcing threads with confidence. Engineered for durability and built to last, this Bottoming Tap (STI) in UNC 1 x 8 is purpose‑made to work with Heli‑Coil wire thread inserts, delivering clean, accurate threads every time your project demands it.
- Premium construction for repeated use. Crafted in high‑speed steel (HSS‑G) to resist wear and maintain precise thread geometry through many tapping cycles.
- Bottoming tap design for full depth. Tailored to reach the bottom of the hole, ensuring complete thread engagement even in blind openings, so inserts seat perfectly and stay secure under load.
- UNC 1 x 8 thread compatibility. Precisely matched to standard coarse threads, providing reliable uptake for fasteners used in automotive, industrial, and general machine work.
- Optimized for heli‑coil inserts. The tap geometry creates clean, square threads that align perfectly with coil inserts, resulting in durable repairs that resist stripping and fatigue.
- Versatile across metals and applications. Ideal for repairing damaged holes in steel, aluminum, and cast components, as well as reinforcing critical threaded joints in maintenance and retrofit tasks.
Why this tap matters in real-world work
- When a hole has been damaged or stripped, a reliable coil insert joined with the Baer Heli Coil Tap restores original strength without oversized repairs or replacement parts.
- For components that endure vibration or heavy use, reinforced threads distribute load more evenly, reducing the risk of future thread failure.
- In field repairs or shop scenarios, this tool helps you complete maintenance quickly with repeatable results, keeping downtime to a minimum.
Practical tips for best results
- Use appropriate cutting fluid to extend tap life and improve chip clearance during tapping.
- Maintain perpendicular alignment to the workpiece and avoid over‑reaching depth to prevent thread damage.
- Clear chips thoroughly after tapping before installing the helicoil insert to ensure a clean seating surface.
- Pair with the correct Heli‑Coil insert size for your UNC 1 x 8 hole to achieve optimal grip and load distribution.
Part Numbers
- Protool Part Number
- BAER-B3116
- Brand
- BAER
- Category
- Heli Coil Tap
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: Baer Heli Coil Taps - Wire Thread Insert - Bottoming Tap (STI) - UNC
View full collection →You are viewing BAER-B3116. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Tap Diameter (D1) | Flute Length (L2) | Overall Length (L1) | Shank Diameter (D2) | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| BAER-B3100 | No. 2 | 56 | 2.8 | 10 | 48 | 3.15 | £14.97 | 5 days | |
| BAER-B3101 | No. 4 | 40 | 3.7 | 13 | 53 | 4 | £14.86 | 5 days | |
| BAER-B3102 | No. 5 | 40 | 4 | 13 | 53 | 4 | £14.86 | 5 days | |
| BAER-B3103 | No. 6 | 32 | 4.5 | 16 | 58 | 5 | £14.86 | 5 days | |
| BAER-B3104 | No. 8 | 32 | 5.2 | 17 | 62 | 5.6 | £14.86 | 5 days | |
| BAER-B3105 | No. 10 | 24 | 6.2 | 19 | 66 | 6.3 | £14.86 | 5 days | |
| BAER-B3106 | No. 12 | 24 | 6.9 | 19 | 66 | 7.1 | £14.86 | 5 days | |
| BAER-B3107 | 1/4 | 20 | 8 | 22 | 72 | 8 | £9.77 | 5 days | |
| BAER-B3108 | 5/16 | 18 | 9.8 | 24 | 80 | 10 | £10.84 | 5 days | |
| BAER-B3109 | 3/8 | 16 | 11.6 | 25 | 85 | 8 | £11.32 | 5 days | |
| BAER-B3110 | 7/16 | 14 | 13.5 | 30 | 95 | 11.2 | £15.01 | 5 days | |
| BAER-B3111 | 1/2 | 13 | 15.2 | 32 | 102 | 12.5 | £17.18 | 5 days | |
| BAER-B3112 | 9/16 | 12 | 17 | 37 | 112 | 14 | £28.80 | 5 days | |
| BAER-B3113 | 5/8 | 11 | 18.9 | 37 | 112 | 14 | £35.47 | 5 days | |
| BAER-B3114 | 3/4 | 10 | 22.4 | 38 | 118 | 16 | £43.07 | 5 days | |
| BAER-B3115 | 7/8 | 9 | 25.9 | 45 | 130 | 18 | £62.08 | 5 days | |
| BAER-B3116 Viewing | 1 | 8 | 29.5 | 48 | 138 | 20 | £62.08 | 5 days | |
| BAER-B3117 | 1.1/8 | 7 | 33.3 | 51 | 151 | 22.4 | £109.27 | 5 days | |
| BAER-B3118 | 1.1/4 | 7 | 36.5 | 57 | 162 | 25 | £131.14 | 5 days | |
| BAER-B3119 | 1.3/8 | 6 | 40.4 | 60 | 170 | 28 | £156.79 | 5 days | |
| BAER-B3120 | 1.1/2 | 6 | 43.6 | 67 | 187 | 31.5 | £210.03 | 5 days |
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