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Somta Stub Drill - HSS-E Parabolic Flute TiAlN COATED - 6.8mm
| Drill Diameter | 6.80 |
| Flute Length | 34 |
| Overall Length | 74 |
| Substrate | HSS-E |
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Description
The Somta Stub Drill - HSS-E Parabolic Flute TiAlN Coated (163-X) series is a high-performance drill bit designed for demanding drilling applications. With a 6.8 mm diameter, it combines an HSS-E substrate with a TiAlN coating to deliver extended wear resistance and excellent heat tolerance. The stub-length design provides rigidity for precise, true holes, while the parabolic flute promotes efficient chip evacuation to keep cutting temperatures down and extend tool life.
- Parabolic flute for efficient chip evacuation: Keeps chips moving away from the cutting edge, reducing heat buildup and helping maintain sharpness over long runs for more consistent hole quality.
- TiAlN-coated HSS-E construction: Increases wear resistance and heat tolerance, enabling longer tool life and the ability to maintain performance at higher cutting speeds.
- Stub-length rigidity: Delivers added stiffness to minimize deflection, producing precise, repeatable holes even in challenging metals and tough materials.
Together, these features translate to faster, more reliable drilling with fewer interruptions for tool changes. The hardened substrate, durable coating, and proven chip-management design help you achieve accurate hole sizes and cleaner finishes, improving throughput and confidence in every job—from production runs to complex one-off projects.
Part Numbers
- Protool Part Number
- 1630680X
- 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 1630680X. 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 | In Stock | |
| 1630110X | 1.10 | 7 | 28 | 1.1 | £2.65 | In Stock | |
| 1630120X | 1.20 | 8 | 30 | 1.2 | £2.65 | In Stock | |
| 1630130X | 1.30 | 8 | 30 | 1.3 | £2.65 | In Stock | |
| 1630140X | 1.40 | 9 | 32 | 1.4 | £2.65 | In Stock | |
| 1630150X | 1.50 | 9 | 32 | 1.5 | £2.69 | In Stock | |
| 1630160X | 1.60 | 10 | 34 | 1.6 | £2.69 | In Stock | |
| 1630170X | 1.70 | 10 | 34 | 1.7 | £2.69 | In Stock | |
| 1630180X | 1.80 | 11 | 36 | 1.8 | £2.69 | In Stock | |
| 1630190X | 1.90 | 11 | 36 | 1.9 | £2.69 | In Stock | |
| 1630200X | 2.00 | 12 | 38 | 2 | £2.80 | 1-2 days | |
| 1630210X | 2.10 | 12 | 38 | 2.1 | £2.80 | In Stock | |
| 1630220X | 2.20 | 13 | 40 | 2.2 | £2.80 | In Stock | |
| 1630230X | 2.30 | 13 | 40 | 2.3 | £2.80 | In Stock | |
| 1630240X | 2.40 | 14 | 43 | 2.4 | £2.80 | 1-2 days | |
| 1630250X | 2.50 | 14 | 43 | 2.5 | £2.82 | 1-2 days | |
| 1630260X | 2.60 | 14 | 43 | 2.6 | £2.82 | In Stock | |
| 1630270X | 2.70 | 16 | 46 | 2.7 | £2.82 | 1-2 days | |
| 1630280X | 2.80 | 16 | 46 | 2.8 | £2.82 | 1-2 days | |
| 1630290X | 2.90 | 16 | 46 | 2.9 | £2.82 | 1-2 days | |
| 1630300X | 3.00 | 16 | 46 | 3 | £2.93 | In Stock | |
| 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 | 1-2 days | |
| 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 | 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 Viewing | 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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