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Somta Stub Drill - HSS-E Parabolic Flute TiAlN COATED - 6.4mm
| Drill Diameter | 6.40 |
| Flute Length | 31 |
| Overall Length | 70 |
| Substrate | HSS-E |
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Description
The Somta Stub Drill in the HSS-E Parabolic Flute TiAlN Coated (6.4 mm) series is built for demanding metal drilling tasks. With an HSS-E substrate and a TiAlN coating, it delivers exceptional hardness, heat resistance, and long tool life for consistent hole quality across challenging materials.
The stub length and parabolic flute design work together to provide rigidity and efficient chip evacuation, helping maintain stable cutting conditions and precise hole placement—even in tough metals.
- Parabolic flute for efficient chip evacuation: The curved flute geometry channels chips away from the cutting edge, improving cooling, reducing clogging, and enabling smoother drilling in hard materials.
- TiAlN-coated HSS-E for wear and heat resistance: The durable coating reduces friction and wear while standing up to high temperatures, delivering longer tool life and more consistent hole sizes.
- Stub length for enhanced rigidity and accuracy: The shortened flute length provides exceptional rigidity and stability, minimizing deflection and ensuring accurate hole placement in metalworking tasks.
This combination makes the Somta Stub Drill a dependable choice for production and repair work alike: it helps you achieve consistent hole diameters, reduces downtime from tool wear, and improves finish quality by maintaining stable cutting conditions—so you can complete projects faster with confidence.
Part Numbers
- Protool Part Number
- 1630640X
- Brand
- Somta
- Category
- Drill
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: Somta Stub Drill - HSS-E Parabolic Flute TiAlN COATED (163-X)
View full collection →You are viewing 1630640X. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| 1630100X | 1.00 | 6 | 26 | 1 | £2.65 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630110X | 1.10 | 7 | 28 | 1.1 | £2.65 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630120X | 1.20 | 8 | 30 | 1.2 | £2.65 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630130X | 1.30 | 8 | 30 | 1.3 | £2.65 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630140X | 1.40 | 9 | 32 | 1.4 | £2.65 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630150X | 1.50 | 9 | 32 | 1.5 | £2.69 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630160X | 1.60 | 10 | 34 | 1.6 | £2.69 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630170X | 1.70 | 10 | 34 | 1.7 | £2.69 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630180X | 1.80 | 11 | 36 | 1.8 | £2.69 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630190X | 1.90 | 11 | 36 | 1.9 | £2.69 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630200X | 2.00 | 12 | 38 | 2 | £2.80 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1630210X | 2.10 | 12 | 38 | 2.1 | £2.80 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630220X | 2.20 | 13 | 40 | 2.2 | £2.80 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630230X | 2.30 | 13 | 40 | 2.3 | £2.80 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630240X | 2.40 | 14 | 43 | 2.4 | £2.80 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1630250X | 2.50 | 14 | 43 | 2.5 | £2.82 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1630260X | 2.60 | 14 | 43 | 2.6 | £2.82 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630270X | 2.70 | 16 | 46 | 2.7 | £2.82 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1630280X | 2.80 | 16 | 46 | 2.8 | £2.82 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1630290X | 2.90 | 16 | 46 | 2.9 | £2.82 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1630300X | 3.00 | 16 | 46 | 3 | £2.93 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1630310X | 3.10 | 18 | 49 | 3.1 | £3.37 | In Stock | |
| 1630320X | 3.20 | 18 | 49 | 3.2 | £3.37 | In Stock | |
| 1630330X | 3.30 | 18 | 49 | 3.3 | £3.37 | 1-2 days | |
| 1630340X | 3.40 | 20 | 52 | 3.4 | £3.73 | In Stock | |
| 1630350X | 3.50 | 20 | 52 | 3.5 | £4.75 | In Stock | |
| 1630360X | 3.60 | 20 | 52 | 3.6 | £4.75 | In Stock | |
| 1630370X | 3.70 | 20 | 52 | 3.7 | £4.75 | In Stock | |
| 1630380X | 3.80 | 22 | 55 | 3.8 | £4.75 | In Stock | |
| 1630390X | 3.90 | 22 | 55 | 3.9 | £4.75 | In Stock | |
| 1630400X | 4.00 | 22 | 55 | 4 | £5.66 | In Stock | |
| 1630410X | 4.10 | 22 | 55 | 4.1 | £5.66 | In Stock | |
| 1630420X | 4.20 | 22 | 55 | 4.2 | £5.66 | In Stock | |
| 1630430X | 4.30 | 24 | 58 | 4.3 | £5.66 | In Stock | |
| 1630440X | 4.40 | 24 | 58 | 4.4 | £5.66 | In Stock | |
| 1630450X | 4.50 | 24 | 58 | 4.5 | £5.70 | In Stock | |
| 1630460X | 4.60 | 24 | 58 | 4.6 | £5.70 | In Stock | |
| 1630480X | 4.80 | 26 | 62 | 4.8 | £5.70 | In Stock | |
| 1630490X | 4.90 | 26 | 62 | 4.9 | £5.70 | In Stock | |
| 1630500X | 5.00 | 26 | 62 | 5 | £5.98 | 1-2 days | |
| 1630510X | 5.10 | 26 | 62 | 5.1 | £5.98 | In Stock | |
| 1630520X | 5.20 | 26 | 62 | 5.2 | £5.98 | In Stock | |
| 1630530X | 5.30 | 26 | 62 | 5.3 | £5.98 | In Stock | |
| 1630540X | 5.40 | 28 | 66 | 5.4 | £5.98 | In Stock | |
| 1630550X | 5.50 | 28 | 66 | 5.5 | £6.70 | In Stock | |
| 1630560X | 5.60 | 28 | 66 | 5.6 | £6.70 | In Stock | |
| 1630570X | 5.70 | 28 | 66 | 5.7 | £6.70 | In Stock | |
| 1630580X | 5.80 | 28 | 66 | 5.8 | £6.70 | In Stock | |
| 1630590X | 5.90 | 28 | 66 | 5.9 | £6.70 | In Stock | |
| 1630600X | 6.00 | 28 | 66 | 6 | £7.29 | In Stock | |
| 1630610X | 6.10 | 31 | 70 | 6.1 | £7.29 | In Stock | |
| 1630620X | 6.20 | 31 | 70 | 6.2 | £7.29 | In Stock | |
| 1630630X | 6.30 | 31 | 70 | 6.3 | £7.29 | In Stock | |
| 1630640X Viewing | 6.40 | 31 | 70 | 6.4 | £7.29 | In Stock | |
| 1630650X | 6.50 | 31 | 70 | 6.5 | £7.89 | In Stock | |
| 1630660X | 6.60 | 31 | 70 | 6.6 | £7.89 | In Stock | |
| 1630670X | 6.70 | 31 | 70 | 6.7 | £7.89 | In Stock | |
| 1630680X | 6.80 | 34 | 74 | 6.8 | £7.89 | In Stock | |
| 1630690X | 6.90 | 34 | 74 | 6.9 | £7.89 | In Stock | |
| 1630700X | 7.00 | 34 | 74 | 7 | £8.27 | In Stock | |
| 1630710X | 7.10 | 34 | 74 | 7.1 | £8.27 | In Stock | |
| 1630720X | 7.20 | 34 | 74 | 7.2 | £8.27 | In Stock | |
| 1630730X | 7.30 | 34 | 74 | 7.3 | £8.27 | In Stock | |
| 1630740X | 7.40 | 34 | 74 | 7.4 | £8.27 | In Stock | |
| 1630750X | 7.50 | 34 | 74 | 7.5 | £9.54 | In Stock | |
| 1630760X | 7.60 | 37 | 79 | 7.6 | £9.54 | In Stock | |
| 1630770X | 7.70 | 37 | 79 | 7.7 | £9.54 | In Stock | |
| 1630780X | 7.80 | 37 | 79 | 7.8 | £9.54 | In Stock | |
| 1630790X | 7.90 | 37 | 79 | 7.9 | £9.54 | In Stock | |
| 1630800X | 8.00 | 37 | 79 | 8 | £10.05 | In Stock | |
| 1630810X | 8.10 | 37 | 79 | 8.1 | £10.05 | In Stock | |
| 1630820X | 8.20 | 37 | 79 | 8.2 | £10.05 | In Stock | |
| 1630830X | 8.30 | 37 | 79 | 8.3 | £10.05 | In Stock | |
| 1630840X | 8.40 | 37 | 79 | 8.4 | £10.05 | In Stock | |
| 1630850X | 8.50 | 37 | 79 | 8.5 | £12.23 | 1-2 days | |
| 1630860X | 8.60 | 40 | 84 | 8.6 | £12.23 | In Stock | |
| 1630870X | 8.70 | 40 | 84 | 8.7 | £12.23 | In Stock | |
| 1630880X | 8.80 | 40 | 84 | 8.8 | £12.23 | In Stock | |
| 1630890X | 8.90 | 40 | 84 | 8.9 | £12.23 | In Stock | |
| 1630900X | 9.00 | 40 | 84 | 9 | £12.51 | In Stock | |
| 1630910X | 9.10 | 40 | 84 | 9.1 | £12.51 | In Stock | |
| 1630920X | 9.20 | 40 | 84 | 9.2 | £12.51 | In Stock | |
| 1630930X | 9.30 | 40 | 84 | 9.3 | £12.51 | In Stock | |
| 1630940X | 9.40 | 40 | 84 | 9.4 | £12.51 | In Stock | |
| 1630950X | 9.50 | 40 | 84 | 9.5 | £13.23 | In Stock | |
| 1630960X | 9.60 | 43 | 89 | 9.6 | £13.23 | In Stock | |
| 1630970X | 9.70 | 43 | 89 | 9.7 | £13.23 | In Stock | |
| 1630980X | 9.80 | 43 | 89 | 9.8 | £13.23 | In Stock | |
| 1630990X | 9.90 | 43 | 89 | 9.9 | £13.23 | In Stock | |
| 1631000X | 10.00 | 43 | 89 | 10 | £14.39 | In Stock | |
| 1631020X | 10.20 | 43 | 89 | 10.2 | £14.39 | In Stock | |
| 1631050X | 10.50 | 43 | 89 | 10.5 | £15.39 | In Stock | |
| 1631080X | 10.80 | 47 | 95 | 10.8 | £15.39 | 1-2 days | |
| 1631100X | 11.00 | 47 | 95 | 11 | £16.30 | In Stock | |
| 1631120X | 11.20 | 47 | 95 | 11.2 | £16.98 | In Stock | |
| 1631150X | 11.50 | 47 | 95 | 11.5 | £17.07 | In Stock | |
| 1631200X | 12.00 | 51 | 102 | 12 | £19.67 | In Stock | |
| 1631250X | 12.50 | 51 | 102 | 12.5 | £22.92 | In Stock | |
| 1631300X | 13.00 | 51 | 102 | 13 | £23.89 | In Stock |
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