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Somta Extra Long Series Drill - HSS-E Parabolic Flute - 9mm x 410mm
| Drill Diameter | 9.00 |
| Flute Length | 280 |
| Overall Length | 410 |
| Substrate | HSS-E |
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Description
The Somta Extra Long Series Drill - HSS-E Parabolic Flute, 9mm x 410mm, is built for one purpose: reach deep without compromising accuracy. When a bore extends beyond the reach of standard bits, this drill delivers dependable performance from entrance to exit.
With a substantial 410mm flute length, it pierces deeply into metal blocks, castings, and complex assemblies where conventional drills struggle. The HSS-E construction provides enhanced heat resistance and durability, helping you maintain edge integrity through extended drilling sessions. The result is longer tool life and consistent hole quality, even in demanding materials.
The parabolic flute design actively optimizes chip evacuation, pulling away debris as you cut. This reduces clogging and heat buildup, supporting steady progress and straighter bores in deep-hole applications. Sharp cutting edges ensure clean entry and accurate hole diameters, while the flute geometry minimizes friction to keep cutting pressure manageable.
Who benefits most: machinists, toolmakers, and fabricators tackling deep-hole drilling in steel, cast iron, and similar metals. It’s especially valuable in maintenance workshops and production environments where deep bores are required without swapping to multiple shorter bits.
- Deep reach for long through-holes: 410mm flute length enables access to deep workpieces without repositioning.
- HSS-E durability: superior heat resistance and extended tool life under high-speed drilling.
- Parabolic flute efficiency: enhanced chip evacuation reduces clogging and heat buildup.
- Precision and stability: sharp cutting edges deliver clean, true holes with minimal wandering.
- Thermal management: flute geometry minimizes friction, protecting both bit and workpiece.
Practical tips for best results: clamp the work firmly, choose appropriate machine speed and feed for the material, and use a light cutting fluid to slow wear. Employ short pecks to clear chips in thick sections and retract periodically to prevent chip buildup. When not in use, store the bit safely to preserve its precision edge.
Part Numbers
- Protool Part Number
- 1200900
- 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 Extra Long Series Drill - HSS-E Parabolic Flute (118 - 119 - 120)
View full collection →You are viewing 1200900. 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 | 1-2 days | |
| 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 | 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 | 1-2 days | |
| 1190650 | 6.50 | 190 | 275 | 6.5 | £20.27 | 1-2 days | |
| 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 | 1-2 days | |
| 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 | 1-2 days | |
| 1200550 | 5.50 | 225 | 330 | 5.5 | £16.51 | 1-2 days | |
| 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 Viewing | 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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