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Somta Long Series Drill - HSS-E Parabolic Flute - 7.7mm

Somta Long Series Drill - HSS-E Parabolic Flute - 7.7mm

SKU:1100770

Meet the Somta Long Series Drill – HSS-E Parabolic Flute – 7.7mm, a purpose-built solution for deep-hole drilling where reach and reliability matter. This drill bit is designed to tackle thick wor... Read more ↓
P
M
K
N
Drill Diameter7.70
Flute Length109
Overall Length165
SubstrateHSS-E
TypeLong Series
Shank Diameter7.7
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£13.53
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Meet the Somta Long Series Drill – HSS-E Parabolic Flute – 7.7mm, a purpose-built solution for deep-hole drilling where reach and reliability matter. This drill bit is designed to tackle thick workpieces with unwavering precision, turning challenging bores into clean, repeatable holes.

  • Long-length design for deep-hole access: The extended flute length delivers the reach needed for internal bores, pockets, and hard-to-reach areas without sacrificing rigidity.
  • HSS-E alloy for durability and heat resistance: An enhanced high-speed steel composition stands up to elevated cutting temperatures, reducing wear during extended drilling sessions.
  • Parabolic flute geometry for superior chip evacuation: Efficient chip removal keeps the cut clear, lowers heat buildup, and maintains consistent hole quality throughout the operation.
  • Reduced cutting forces and lower friction: The parabolic design and sharp cutting edges minimize resistance, improving hole diameter accuracy and extending tool life.
  • Clean, precise holes in demanding materials: Optimized for metals such as steel and cast iron, as well as common alloys encountered in fabrication and maintenance work.
  • Versatile for industrial and workshop use: Ideal for production runs or single-repair jobs where deep drilling capability is essential.

In practice, this 7.7mm HSS-E parabolic-flute long drill excels when you need consistent, high-quality holes in thick components, from automotive housings to machine frames. Use appropriate speeds and feeds for your material, and apply light lubrication to minimize wear and preserve hole straightness. The Somta Long Series Drill is more than a bit—it’s a dependable tool that helps you finish projects faster with fewer interruptions.

Drill Diameter 7.70
Flute Length 109
Overall Length 165
Substrate HSS-E
Type Long Series
Shank Diameter 7.7
Coated No
Standard DIN 340
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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Nice experience staff are very helpful and interested...
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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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.
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Full Range: Somta Long Series Drill - HSS-E Parabolic Flute (110)

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You are viewing 1100770. Click any other SKU to view its full details.

Product SKUDrill DiameterFlute LengthOverall LengthShank DiameterPriceStock Order
1100100 1.0033561£2.42 1-2 days
1100110 1.1037601.1£2.37 1-2 days
1100120 1.2041651.2£2.57 1-2 days
1100130 1.3041651.3£2.61 In Stock
1100140 1.4041701.4£3.88 In Stock
1100150 1.5045701.5£4.52 1-2 days
1100160 1.6050761.6£5.02 1-2 days
1100170 1.7050761.7£4.98 1-2 days
1100180 1.8053801.8£4.90 In Stock
1100190 1.9053801.9£4.90 In Stock
1100200 2.0056852£4.90 1-2 days
1100210 2.1056852.1£4.90 1-2 days
1100220 2.2059902.2£5.07 In Stock
1100230 2.3059902.3£5.07 In Stock
1100240 2.4062952.4£5.30 In Stock
1100250 2.5062952.5£4.47 1-2 days
1100260 2.60661002.6£4.43 1-2 days
1100270 2.70661002.7£4.66 In Stock
1100280 2.80661002.8£4.66 In Stock
1100290 2.90661002.9£4.58 1-2 days
1100300 3.00661003£4.47 In Stock
1100310 3.10691063.1£4.75 In Stock
1100320 3.20691063.2£4.66 In Stock
1100330 3.30691063.3£4.66 1-2 days
1100340 3.40731123.4£5.30 1-2 days
1100350 3.50731123.5£5.26 In Stock
1100360 3.60731123.6£5.19 In Stock
1100370 3.70731123.7£5.19 In Stock
1100380 3.80781193.8£5.38 In Stock
1100390 3.90781193.9£5.38 In Stock
1100400 4.00781194£5.38 1-2 days
1100410 4.10781194.1£5.94 In Stock
1100420 4.20781194.2£5.94 1-2 days
1100430 4.30821264.3£6.49 In Stock
1100440 4.40821264.4£6.42 In Stock
1100450 4.50821264.5£6.42 In Stock
1100460 4.60821264.6£7.02 In Stock
1100470 4.70821264.7£6.81 In Stock
1100480 4.80871324.8£7.57 In Stock
1100490 4.90871324.9£7.50 In Stock
1100500 5.00871325£7.00 In Stock
1100510 5.10871325.1£7.57 1-2 days
1100520 5.20871325.2£7.50 In Stock
1100530 5.30871325.3£6.93 In Stock
1100540 5.40911395.4£9.18 In Stock
1100550 5.50911395.5£9.18 In Stock
1100560 5.60911395.6£9.14 1-2 days
1100570 5.70911395.7£9.14 In Stock
1100580 5.80911395.8£8.99 In Stock
1100590 5.90911395.9£8.90 In Stock
1100600 6.00911396£8.35 1-2 days
1100610 6.10971486.1£11.07 In Stock
1100620 6.20971486.2£10.13 In Stock
1100630 6.30971486.3£9.54 In Stock
1100640 6.40971486.4£10.88 In Stock
1100650 6.50971486.5£11.70 In Stock
1100660 6.60971486.6£10.73 In Stock
1100670 6.70971486.7£10.09 In Stock
1100680 6.801021566.8£12.64 In Stock
1100690 6.901021566.9£12.51 In Stock
1100700 7.001021567£12.36 In Stock
1100710 7.101021567.1£11.77 In Stock
1100720 7.201021567.2£12.78 In Stock
1100730 7.301021567.3£12.64 In Stock
1100740 7.401021567.4£12.51 In Stock
1100750 7.501021567.5£11.77 In Stock
1100760 7.601091657.6£13.53 1-2 days
1100770 Viewing7.701091657.7£13.53 In Stock
1100780 7.801091657.8£13.42 In Stock
1100790 7.901091657.9£13.23 In Stock
1100800 8.001091658£12.57 In Stock
1100810 8.101091658.1£14.42 In Stock
1100820 8.201091658.2£14.42 In Stock
1100830 8.301091658.3£14.42 In Stock
1100840 8.401091658.4£14.29 In Stock
1100850 8.501091658.5£13.53 In Stock
1100860 8.601151758.6£15.84 In Stock
1100870 8.701151758.7£15.90 In Stock
1100880 8.801151758.8£15.71 In Stock
1100890 8.901151758.9£15.56 In Stock
1100900 9.001151759£14.80 In Stock
1100910 9.101151759.1£16.94 In Stock
1100920 9.201151759.2£16.94 In Stock
1100930 9.301151759.3£16.79 In Stock
1100940 9.401151759.4£16.62 In Stock
1100950 9.501151759.5£15.84 1-2 days
1100960 9.601211849.6£18.72 In Stock
1100970 9.701211849.7£18.72 In Stock
1100980 9.801211849.8£18.53 In Stock
1100990 9.901211849.9£18.40 In Stock
1101000 10.0012118410£17.81 In Stock

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