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Somta Extra Long Series Drill - HSS-E Parabolic Flute - 11.5mm x 280mm
SKU:1181150
The Somta Extra Long Series Drill — HSS-E Parabolic Flute, 11.5mm x 280mm, is engineered for deep-hole precision and dependable performance in demanding metalwork. Its extended reach lets you dril...
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Material Compatibility
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Specification
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| Drill Diameter | 11.50 |
| Flute Length | 195 |
| Overall Length | 280 |
| Substrate | HSS-E |
| Type | Extra Long Series |
| Shank Diameter | 11.5 |
£49.12
Prices shown ex. VAT
In Stock— only 4 left
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Free delivery over £50 ex VAT
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The Somta Extra Long Series Drill — HSS-E Parabolic Flute, 11.5mm x 280mm, is engineered for deep-hole precision and dependable performance in demanding metalwork. Its extended reach lets you drill farther into workpieces without repositioning, making it ideal for long blind holes, pockets, and hard-to-reach interiors.
Why this drill stands out
- Extra-long reach at 280mm overall length enables deep-hole drilling in components with substantial thickness or complex geometries—fewer tool changes and more productive cycles.
- HSS-E construction delivers enhanced durability and heat resistance, extending tool life when drilling tough materials under high-speed conditions.
- Parabolic flute design optimizes chip evacuation, reducing clogging and ensuring a smoother, more consistent hole from shallow entry to deep exit.
- Sharp cutting edges provide clean, accurate holes with minimal dwell time and reduced wall feathering, improving overall hole quality.
- Low-friction flute geometry minimizes heat buildup and friction, helping to maintain cutting efficiency even on demanding workloads.
Use cases and practical benefits
Designed for deep-hole drilling tasks, this drill excels when you need reliable performance across a range of metalworking applications. Use it for long-through-holes in automotive components, precision fixtures, aerospace-grade assemblies, and any project where reach matters as much as accuracy. The parabolic flute keeps chips moving away from the cutting edge, which translates to steadier feeds, fewer interruptions, and more consistent hole diameters.
Tips for best results
- Start with a light, steady feed and maintain a consistent cutting speed to avoid deflection and maximize hole straightness.
- Use appropriate cutting fluid or coolant to extend tool life and improve surface finish, especially in difficult alloys.
- Peck drilling in short intervals helps clear chips and reduces heat buildup during deep-hole work.
- Inspect the flute and cutting edges after extended use; replace or resharpen as needed to maintain hole quality.
| Drill Diameter | 11.50 |
| Flute Length | 195 |
| Overall Length | 280 |
| Substrate | HSS-E |
| Type | Extra Long Series |
| Shank Diameter | 11.5 |
| Coated | No |
| Standard | DIN 1869 |
| Helix Angle | 40° |
| Point Angle | 130° |
| Point Geometry | Split Point |
| Coating | Uncoated |
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.
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Staff are very helpful and interested in providing a good service making us the customer feel valued.
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honest about stock and prices are competitive.
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Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
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Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Full Range: Somta Extra Long Series Drill - HSS-E Parabolic Flute (118 - 119 - 120)
View full collection →You are viewing 1181150. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| 1180201 | 2.00 | 90 | 135 | 2 | £4.16 | In Stock | |
| 1180250 | 2.50 | 95 | 140 | 2.5 | £4.79 | In Stock | |
| 1180300 | 3.00 | 100 | 150 | 3 | £5.43 | In Stock | |
| 1180301 | 3.00 | 105 | 155 | 3 | £5.70 | In Stock | |
| 1180350 | 3.50 | 115 | 165 | 3.5 | £6.02 | In Stock | |
| 1180400 | 4.00 | 120 | 175 | 4 | £7.36 | 1-2 days | |
| 1180450 | 4.50 | 125 | 185 | 4.5 | £8.90 | In Stock | |
| 1180500 | 5.00 | 135 | 195 | 5 | £10.68 | In Stock | |
| 1180550 | 5.50 | 140 | 205 | 5.5 | £12.87 | In Stock | |
| 1180600 | 6.00 | 140 | 205 | 6 | £14.08 | 1-2 days | |
| 1180650 | 6.50 | 150 | 215 | 6.5 | £16.30 | In Stock | |
| 1180700 | 7.00 | 155 | 225 | 7 | £18.80 | In Stock | |
| 1180750 | 7.50 | 155 | 225 | 7.5 | £20.82 | In Stock | |
| 1180800 | 8.00 | 165 | 240 | 8 | £32.22 | In Stock | |
| 1180850 | 8.50 | 165 | 240 | 8.5 | £26.84 | In Stock | |
| 1180900 | 9.00 | 175 | 250 | 9 | £30.55 | 1-2 days | |
| 1180950 | 9.50 | 175 | 250 | 9.5 | £33.33 | In Stock | |
| 1181000 | 10.00 | 185 | 265 | 10 | £38.27 | In Stock | |
| 1181100 | 11.00 | 195 | 280 | 11 | £45.60 | In Stock | |
| 1181150 Viewing | 11.50 | 195 | 280 | 11.5 | £49.12 | In Stock | |
| 1181200 | 12.00 | 205 | 295 | 12 | £55.29 | In Stock | |
| 1181250 | 12.50 | 205 | 295 | 12.5 | £59.34 | 1-2 days | |
| 1181300 | 13.00 | 205 | 295 | 13 | £63.60 | 1-2 days | |
| 1181350 | 13.50 | 220 | 310 | 13.5 | £73.10 | In Stock | |
| 1181400 | 14.00 | 220 | 310 | 14 | £78.08 | In Stock | |
| 1181450 | 14.50 | 220 | 310 | 14.5 | £82.17 | 1-2 days | |
| 1181500 | 15.00 | 220 | 310 | 15 | £86.92 | In Stock | |
| 1181550 | 15.50 | 230 | 320 | 15.5 | £99.66 | In Stock | |
| 1181600 | 16.00 | 230 | 320 | 16 | £101.00 | In Stock | |
| 1190301 | 3.00 | 135 | 200 | 3 | £7.00 | In Stock | |
| 1190350 | 3.50 | 145 | 210 | 3.5 | £7.87 | In Stock | |
| 1190400 | 4.00 | 150 | 220 | 4 | £9.60 | 1-2 days | |
| 1190450 | 4.50 | 160 | 235 | 4.5 | £11.00 | 1-2 days | |
| 1190500 | 5.00 | 170 | 245 | 5 | £13.10 | 1-2 days | |
| 1190550 | 5.50 | 180 | 260 | 5.5 | £15.67 | In Stock | |
| 1190600 | 6.00 | 180 | 260 | 6 | £17.21 | In Stock | |
| 1190650 | 6.50 | 190 | 275 | 6.5 | £20.27 | In Stock | |
| 1190700 | 7.00 | 200 | 290 | 7 | £22.83 | 1-2 days | |
| 1190750 | 7.50 | 200 | 290 | 7.5 | £25.42 | In Stock | |
| 1190800 | 8.00 | 210 | 305 | 8 | £29.49 | 1-2 days | |
| 1190850 | 8.50 | 210 | 305 | 8.5 | £32.65 | In Stock | |
| 1190900 | 9.00 | 220 | 320 | 9 | £37.44 | In Stock | |
| 1190950 | 9.50 | 220 | 320 | 9.5 | £41.00 | In Stock | |
| 1191000 | 10.00 | 235 | 340 | 10 | £47.30 | 1-2 days | |
| 1191050 | 10.50 | 235 | 340 | 10.5 | £49.52 | In Stock | |
| 1191100 | 11.00 | 250 | 365 | 11 | £57.16 | 1-2 days | |
| 1191200 | 12.00 | 260 | 375 | 12 | £68.12 | In Stock | |
| 1191250 | 12.50 | 260 | 375 | 12.5 | £73.29 | In Stock | |
| 1191300 | 13.00 | 260 | 375 | 13 | £78.59 | In Stock | |
| 1191350 | 13.50 | 275 | 380 | 13.5 | £85.41 | In Stock | |
| 1191400 | 14.00 | 275 | 380 | 14 | £89.89 | In Stock | |
| 1191450 | 14.50 | 275 | 380 | 14.5 | £100.25 | In Stock | |
| 1191500 | 15.00 | 275 | 380 | 15 | £101.21 | In Stock | |
| 1191550 | 15.50 | 290 | 400 | 15.5 | £120.44 | In Stock | |
| 1191600 | 16.00 | 290 | 400 | 16 | £120.71 | In Stock | |
| 1200400 | 4.00 | 190 | 280 | 4 | £10.54 | In Stock | |
| 1200450 | 4.50 | 200 | 295 | 4.5 | £11.43 | In Stock | |
| 1200500 | 5.00 | 210 | 315 | 5 | £13.50 | In Stock | |
| 1200550 | 5.50 | 225 | 330 | 5.5 | £16.51 | In Stock | |
| 1200600 | 6.00 | 225 | 330 | 6 | £19.91 | 1-2 days | |
| 1200650 | 6.50 | 235 | 350 | 6.5 | £23.89 | 1-2 days | |
| 1200700 | 7.00 | 250 | 370 | 7 | £27.07 | In Stock | |
| 1200750 | 7.50 | 250 | 370 | 7.5 | £30.04 | In Stock | |
| 1200800 | 8.00 | 265 | 390 | 8 | £37.21 | In Stock | |
| 1200850 | 8.50 | 265 | 390 | 8.5 | £38.90 | In Stock | |
| 1200900 | 9.00 | 280 | 410 | 9 | £44.75 | In Stock | |
| 1200950 | 9.50 | 280 | 410 | 9.5 | £49.08 | In Stock | |
| 1201000 | 10.00 | 295 | 430 | 10 | £59.34 | In Stock | |
| 1201050 | 10.50 | 295 | 430 | 10.5 | £60.55 | In Stock | |
| 1201100 | 11.00 | 300 | 455 | 11 | £69.30 | In Stock | |
| 1201150 | 11.50 | 300 | 455 | 11.5 | £75.01 | In Stock | |
| 1201200 | 12.00 | 300 | 480 | 12 | £85.05 | In Stock | |
| 1201250 | 12.50 | 300 | 480 | 12.5 | £91.58 | In Stock | |
| 1201300 | 13.00 | 300 | 480 | 13 | £98.35 | In Stock |
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