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Carmex Threading Tap - Spiral Flute - UNC Supercut Tap - HSS-E - 1 x 8
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Description
The Carmex Threading Tap – Spiral Flute, UNC Supercut Tap, HSS-E, 1 x 8 is a precision threading tool designed for professionals who demand clean, accurate UNC threads in tough materials. Crafted from cobalt-enhanced HSS, it’s built for high-speed tapping and long-lasting performance in demanding settings.
- Thread format: UNC (Unified National Coarse) threading with 1 x 8 size, enabling standard coarse-thread compatibility.
- Flute design: Spiral flute for efficient chip evacuation, reducing clogging and minimizing the risk of thread defects during tapping.
- Material: HSS-E (high-speed steel with cobalt content) delivers greater wear resistance and heat tolerance for challenging materials.
- Recommended applications: Ideal for machine tapping on hard metals and alloys, including use on drill presses and milling machines where reliable UNC threads are required.
- Durability and reliability: Built to withstand high-speed tapping and repeated use, helping to extend tool life and maintain dimensional accuracy.
This tap helps you achieve clean, accurate UNC threads with fewer passes and less rework. The cobalt-infused HSS-E construction resists heat and wear, while the spiral flute design promotes steady chip clearance for smoother operation. Whether you’re assembling machinery, fixtures, or custom parts, this tap delivers dependable performance in a busy shop environment.
Part Numbers
- Protool Part Number
- CTSD376C1-8UNC2BXT5
- Brand
- Carmex
- Category
- Threading Tap
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: Carmex Threading Taps - Spiral Flute - UNC Supercut Tap - HSS-E
View full collection →You are viewing CTSD376C1-8UNC2BXT5. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Overall Length | Flute Length | Square | Drill Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| CTSD371C256UNC2BXT5 | No. 2 | 56 | 45 | 10 | 2.1 | 1.85 | £25.46 | 5 days | |
| CTSD371C440UNC2BXT5 | No. 4 | 40 | 56 | 5 | 2.7 | 2.35 | £20.20 | In Stock | |
| CTSD371C540UNC2BXT5 | No. 5 | 40 | 56 | 7 | 2.7 | 2.65 | £20.20 | 5 days | |
| CTSD371C632UNC2BXT5 | No. 6 | 32 | 56 | 6 | 3 | 2.85 | £20.42 | 5 days | |
| CTSD371C1024UNC2BXT5 | No. 10 | 24 | 70 | 8 | 4.9 | 3.9 | £22.22 | 5 days | |
| CTSD371C1224UNC2BXT5 | No. 12 | 24 | 80 | 10 | 4.9 | 4.5 | £23.00 | 5 days | |
| CTSD371C025020UNC2BXT5 | 1/4 | 20 | 80 | 13 | 5.5 | 5.1 | £27.66 | 5 days | |
| CTSD371C031218UNC2BXT5 | 5/16 | 18 | 90 | 13 | 6 | 6.6 | £27.66 | 5 days | |
| CTSD371C037516UNC2BXT5 | 3/8 | 16 | 100 | 15 | 8 | 8 | £36.32 | 5 days | |
| CTSD376C043714UNC2BXT5 | 7/16 | 14 | 100 | 15 | 6.2 | 9.4 | £47.22 | 5 days | |
| CTSD376C050013UNC2BXT5 | 1/2 | 13 | 110 | 18 | 7 | 10.8 | £63.58 | 5 days | |
| CTSD376C056212UNC2BXT5 | 9/16 | 12 | 110 | 20 | 9 | 12.2 | £63.58 | 5 days | |
| CTSD376C062511UNC2BXT5 | 5/8 | 11 | 110 | 22 | 9 | 13.5 | £74.48 | 5 days | |
| CTSD376C075010UNC2BXT5 | 3/4 | 10 | 125 | 25 | 11 | 16.5 | £110.52 | 5 days | |
| CTSD376C08759UNC2BXT5 | 7/8 | 9 | 140 | 30 | 14.5 | 19.5 | £149.38 | 5 days | |
| CTSD376C1-8UNC2BXT5 Viewing | 1 | 8 | 160 | 30 | 16 | 22.25 | £194.02 | 5 days |
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