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Baer Heli Coil Tap - Wire Thread Insert - Bottoming Tap (STI) - Metric - M12 x 1.75
| Thread Form | Metric |
| Size | M12 |
| Pitch | 1.75 |
| Lead | Bottoming Tap (STI) |
| Thread Direction | Right Hand |
| Tolerance | 4H |
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Meet the Baer Heli Coil Tap — the precise, durable tool you rely on for flawless thread repairs and durable reinforcements. Designed to work seamlessly with Heli-Coil wire thread inserts, this bottoming tap creates strong, repeatable M12 x 1.75 threads that restore performance and extend the life of countless components.
- Metric precision you can trust: tapped threads are crafted to exact M12 x 1.75 dimensions, ensuring reliable insert engagement and consistent grip every time.
- Bottoming reach for blind holes: the bottoming design drives threads all the way to the base of the hole, allowing full-depth engagement and a solid foundation for the coil insert.
- Durable, shop-ready construction: built to withstand frequent use in automotive, industrial, and machinery applications, delivering steady performance without rapid wear.
- Consistent alignment and finish: engineered to minimize cross-threading and produce clean, true threads that mate perfectly with Heli-Coil inserts.
- Versatile repair capability: ideal for restoring damaged or stripped threads in steel, aluminum, and other common base materials, restoring original strength where it matters most.
- Ease of integration: pairs smoothly with standard Heli-Coil repair systems, helping you streamline maintenance and minimize downtime.
Why this matters: a properly cut, bottomed thread means a reliable coil insert seating, higher torque tolerance, and reduced risk of pullout under load. It’s the difference between a temporary fix and a lasting repair that behaves like OEM threads.
Pro tips for best results:
- Prepare the hole by removing damaged material and drilling to the correct pilot size for M12 x 1.75 repairs.
- Use a suitable cutting oil to reduce heat and extend tap life during the cut.
- Install the Heli-Coil insert per your kit’s instructions to restore full thread strength and load capacity.
- Verify thread quality with a gauge before assembly to ensure optimal performance.
The Baer Heli Coil Tap is your reliable partner for meticulous thread restoration and reinforced connections in demanding environments. Invest in precision, durability, and consistent results that keep equipment running smoothly.
| Thread Form | Metric |
| Size | M12 |
| Pitch | 1.75 |
| Lead | Bottoming Tap (STI) |
| Thread Direction | Right Hand |
| Tolerance | 4H |
| Tap Diameter (D1) | 14.3 |
| Flute Length (L2) | 30 |
| Overall Length (L1) | 95 |
| Shank Diameter (D2) | 11.2 |
| Square Drive | 9 |
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) - Metric
View full collection →You are viewing BAER-B3020-1. 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-B3001-1 | M2 | 0.4 | 2.5 | 9.5 | 44.5 | 2.8 | £11.28 | 5 days | |
| BAER-B3003-1 | M2.5 | 0.45 | 3.1 | 11 | 48 | 3.15 | £11.28 | 5 days | |
| BAER-B3005-1 | M3 | 0.5 | 3.6 | 13 | 53 | 4 | £9.92 | 5 days | |
| BAER-B3006-1 | M3.5 | 0.6 | 4.3 | 13 | 53 | 4.5 | £10.84 | 5 days | |
| BAER-B3007-1 | M4 | 0.7 | 4.9 | 16 | 58 | 5 | £9.92 | 5 days | |
| BAER-B3008-1 | M5 | 0.8 | 6 | 19 | 66 | 6.3 | £9.92 | 5 days | |
| BAER-B3009-1 | M6 | 1 | 7.3 | 22 | 72 | 8 | £9.92 | 5 days | |
| BAER-B3010-1 | M7 | 1 | 8.3 | 22 | 72 | 9 | £12.27 | In Stock | |
| BAER-B3011-1 | M8 | 1.25 | 9.6 | 24 | 80 | 10 | £12.27 | 5 days | |
| BAER-B3012-1 | M8 | 1 | 9.3 | 24 | 80 | 10 | £12.27 | 5 days | |
| BAER-B3013-1 | M9 | 1.25 | 10.6 | 25 | 85 | 8 | £15.19 | 5 days | |
| BAER-B3015-1 | M10 | 1.5 | 11.9 | 29 | 89 | 9 | £15.19 | 5 days | |
| BAER-B3016-1 | M10 | 1.25 | 11.6 | 25 | 85 | 8 | £15.19 | 5 days | |
| BAER-B3017-1 | M10 | 1 | 11.3 | 25 | 85 | 8 | £15.19 | 5 days | |
| BAER-B3018-1 | M11 | 1.5 | 12.9 | 29 | 89 | 9 | £17.07 | 5 days | |
| BAER-B3020-1 Viewing | M12 | 1.75 | 14.3 | 30 | 95 | 11.2 | £17.07 | 5 days | |
| BAER-B3021-1 | M12 | 1.5 | 14 | 30 | 95 | 11.2 | £20.83 | 5 days | |
| BAER-B3022-1 | M12 | 1.25 | 13.6 | 30 | 95 | 11.2 | £20.83 | 5 days | |
| BAER-B3023-1 | M12 | 1 | 13.3 | 30 | 95 | 11.2 | £21.97 | 5 days | |
| BAER-B3027-1 | M14 | 2 | 16.6 | 32 | 102 | 12.5 | £23.74 | 5 days | |
| BAER-B3028-1 | M14 | 1.5 | 16 | 32 | 102 | 12.5 | £23.74 | 5 days | |
| BAER-B3029-1 | M14 | 1.25 | 15.6 | 32 | 102 | 12.5 | £23.74 | 5 days | |
| BAER-B3030-1 | M14 | 1 | 15.3 | 32 | 102 | 12.5 | £23.74 | 5 days | |
| BAER-B3033-1 | M16 | 2 | 18.6 | 37 | 112 | 14 | £29.01 | 5 days | |
| BAER-B3034-1 | M16 | 1.5 | 18 | 29 | 104 | 14 | £29.01 | 5 days | |
| BAER-B3035-1 | M18 | 2.5 | 21.3 | 38 | 118 | 16 | £41.30 | 5 days | |
| BAER-B3036-1 | M18 | 2 | 20.6 | 29 | 104 | 14 | £41.30 | 5 days | |
| BAER-B3037-1 | M18 | 1.5 | 20 | 29 | 104 | 14 | £41.30 | 5 days | |
| BAER-B3038-1 | M20 | 2.5 | 23.3 | 38 | 118 | 16 | £45.87 | 5 days | |
| BAER-B3039-1 | M20 | 2 | 22.6 | 33 | 113 | 16 | £45.87 | 5 days | |
| BAER-B3040-1 | M20 | 1.5 | 22 | 33 | 113 | 16 | £45.87 | 5 days | |
| BAER-B3041-1 | M22 | 2.5 | 25.3 | 45 | 130 | 18 | £52.83 | 5 days | |
| BAER-B3042-1 | M22 | 2 | 24.6 | 35 | 120 | 18 | £52.83 | 5 days | |
| BAER-B3043-1 | M22 | 1.5 | 24 | 35 | 120 | 18 | £52.83 | 5 days | |
| BAER-B3044-1 | M24 | 3 | 27.9 | 48 | 138 | 20 | £62.57 | 5 days | |
| BAER-B3045-1 | M24 | 2 | 26.6 | 37 | 127 | 20 | £62.57 | 5 days | |
| BAER-B3046-1 | M24 | 1.5 | 26 | 35 | 120 | 18 | £62.57 | 5 days | |
| BAER-B3049 | M26 | 1.5 | 28 | 37 | 127 | 20 | £113.67 | 5 days | |
| BAER-B3050 | M27 | 3 | 30.9 | 51 | 151 | 22.4 | £113.67 | 5 days | |
| BAER-B3051 | M27 | 2 | 29.6 | 37 | 127 | 20 | £113.67 | 5 days | |
| BAER-B3052 | M27 | 1.5 | 29 | 37 | 127 | 20 | £113.67 | 5 days | |
| BAER-B3053 | M28 | 1.5 | 30 | 37 | 127 | 20 | £113.67 | 5 days | |
| BAER-B3054-1 | M30 | 3.5 | 34.6 | 57 | 162 | 25 | £149.14 | 5 days | |
| BAER-B3055 | M30 | 2 | 32.6 | 37 | 137 | 22.4 | £149.14 | 5 days | |
| BAER-B3056 | M30 | 1.5 | 32 | 37 | 137 | 22.4 | £149.14 | 5 days | |
| BAER-B3057 | M33 | 3.5 | 37.6 | 57 | 162 | 25 | £154.72 | 5 days | |
| BAER-B3058 | M33 | 2 | 35.6 | 37 | 144 | 25 | £154.72 | 5 days | |
| BAER-B3060 | M36 | 4 | 41.2 | 60 | 170 | 28 | £172.46 | 5 days | |
| BAER-B3061 | M36 | 3 | 39.9 | 60 | 170 | 28 | £172.46 | 5 days | |
| BAER-B3062 | M36 | 2 | 38.6 | 39 | 150 | 28 | £172.46 | 5 days | |
| BAER-B3063 | M36 | 1.5 | 38 | 39 | 150 | 28 | £172.46 | 5 days | |
| BAER-B3064-1 | M39 | 4 | 44.2 | 67 | 187 | 31.5 | £264.70 | 5 days | |
| BAER-B3065-1 | M39 | 3 | 42.9 | 39 | 149 | 28 | £225.50 | 5 days |
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