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Somta Jobber Drill Parabolic Flute - TiAlN Coated - 3.9mm
| Drill Diameter | 3.90 |
| Flute Length | 43 |
| Overall Length | 75 |
| Substrate | HSS-E |
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Description
The Somta Parabolic Flute Jobber Drill, TiAlN coated (164X), 3.9 mm diameter, is built for precision drilling across a broad range of metals. Designed for engineers, machinists, tradespeople, hobbyists, and maintenance technicians, it delivers clean, accurate holes with efficient chip handling.
The parabolic flute design enhances chip evacuation and reduces cutting forces, while the TiAlN coating adds hardness, heat resistance, and lubricity. This combination supports higher cutting speeds and extended tool life when drilling stainless steel, alloy steels, cast iron, and other challenging materials.
- Parabolic flute for efficient chip evacuation: The parabolic geometry directs chips away from the cutting edge, reducing clogging and cutting forces for smoother holes and longer tool life.
- TiAlN coating for hardness and heat resistance: The Titanium Aluminum Nitride coating increases hardness, lowers friction, and resists high temperatures, enabling higher speeds and extended life in demanding materials.
- Versatile performance across difficult materials: Excellent results in stainless steel, alloy steels, cast iron, and other challenging workpieces, delivering consistent hole quality with fewer tool changes.
By choosing this drill, you streamline production with reliable, repeatable results. The combination of efficient chip evacuation and heat-resistant coating reduces downtime, improves hole quality, and supports faster throughput across a variety of common and challenging metals.
Part Numbers
- Protool Part Number
- 1640390X
- 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 Parabolic Flute Jobber Drills TiAlN Coated (164X)
View full collection →You are viewing 1640390X. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| 1640100X | 1.00 | 12 | 34 | 1 | £2.42 | In Stock | |
| 1640110X | 1.10 | 14 | 36 | 1.1 | £2.42 | In Stock | |
| 1640120X | 1.20 | 16 | 38 | 1.2 | £2.42 | In Stock | |
| 1640130X | 1.30 | 16 | 38 | 1.3 | £2.42 | In Stock | |
| 1640140X | 1.40 | 18 | 40 | 1.4 | £2.42 | In Stock | |
| 1640150X | 1.50 | 18 | 40 | 1.5 | £3.29 | 1-2 days | |
| 1640160X | 1.60 | 20 | 43 | 1.6 | £3.29 | In Stock | |
| 1640170X | 1.70 | 20 | 43 | 1.7 | £3.29 | In Stock | |
| 1640180X | 1.80 | 22 | 46 | 1.8 | £3.29 | 1-2 days | |
| 1640190X | 1.90 | 22 | 46 | 1.9 | £3.29 | In Stock | |
| 1640200X | 2.00 | 24 | 49 | 2 | £3.73 | In Stock | |
| 1640210X | 2.10 | 24 | 49 | 2.1 | £3.73 | In Stock | |
| 1640220X | 2.20 | 27 | 53 | 2.2 | £3.73 | In Stock | |
| 1640230X | 2.30 | 27 | 53 | 2.3 | £3.73 | In Stock | |
| 1640240X | 2.40 | 30 | 57 | 2.4 | £3.73 | 1-2 days | |
| 1640250X | 2.50 | 30 | 57 | 2.5 | £4.20 | In Stock | |
| 1640260X | 2.60 | 30 | 57 | 2.6 | £4.20 | In Stock | |
| 1640270X | 2.70 | 33 | 61 | 2.7 | £4.20 | In Stock | |
| 1640280X | 2.80 | 33 | 61 | 2.8 | £4.20 | 1-2 days | |
| 1640290X | 2.90 | 33 | 61 | 2.9 | £4.20 | In Stock | |
| 1640300X | 3.00 | 33 | 61 | 3 | £4.83 | In Stock | |
| 1640310X | 3.10 | 36 | 65 | 3.1 | £4.83 | In Stock | |
| 1640320X | 3.20 | 36 | 65 | 3.2 | £4.83 | In Stock | |
| 1640330X | 3.30 | 36 | 65 | 3.3 | £4.83 | 1-2 days | |
| 1640340X | 3.40 | 39 | 70 | 3.4 | £4.83 | In Stock | |
| 1640350X | 3.50 | 39 | 70 | 3.5 | £5.19 | 1-2 days | |
| 1640380X | 3.80 | 43 | 75 | 3.8 | £5.19 | In Stock | |
| 1640390X Viewing | 3.90 | 43 | 75 | 3.9 | £5.19 | In Stock | |
| 1640400X | 4.00 | 43 | 75 | 4 | £5.30 | In Stock | |
| 1640410X | 4.10 | 43 | 75 | 4.1 | £5.30 | In Stock | |
| 1640420X | 4.20 | 43 | 75 | 4.2 | £5.30 | In Stock | |
| 1640430X | 4.30 | 47 | 80 | 4.3 | £5.30 | In Stock | |
| 1640440X | 4.40 | 47 | 80 | 4.4 | £5.30 | In Stock | |
| 1640450X | 4.50 | 47 | 80 | 4.5 | £5.38 | In Stock | |
| 1640480X | 4.80 | 52 | 86 | 4.8 | £5.38 | In Stock | |
| 1640490X | 4.90 | 52 | 86 | 4.9 | £5.38 | In Stock | |
| 1640500X | 5.00 | 52 | 86 | 5 | £6.42 | In Stock | |
| 1640510X | 5.10 | 52 | 86 | 5.1 | £6.42 | In Stock | |
| 1640520X | 5.20 | 52 | 86 | 5.2 | £6.42 | In Stock | |
| 1640530X | 5.30 | 52 | 86 | 5.3 | £6.42 | In Stock | |
| 1640540X | 5.40 | 57 | 93 | 5.4 | £6.42 | In Stock | |
| 1640550X | 5.50 | 57 | 93 | 5.5 | £7.87 | In Stock | |
| 1640560X | 5.60 | 57 | 93 | 5.6 | £7.87 | In Stock | |
| 1640570X | 5.70 | 57 | 93 | 5.7 | £7.87 | In Stock | |
| 1640580X | 5.80 | 57 | 93 | 5.8 | £7.87 | In Stock | |
| 1640590X | 5.90 | 57 | 93 | 5.9 | £7.87 | In Stock | |
| 1640600X | 6.00 | 57 | 93 | 6 | £8.95 | In Stock | |
| 1640610X | 6.10 | 63 | 101 | 6.1 | £8.95 | In Stock | |
| 1640620X | 6.20 | 63 | 101 | 6.2 | £8.95 | In Stock | |
| 1640630X | 6.30 | 63 | 101 | 6.3 | £8.95 | In Stock | |
| 1640640X | 6.40 | 63 | 101 | 6.4 | £8.95 | In Stock | |
| 1640650X | 6.50 | 63 | 101 | 6.5 | £11.64 | In Stock | |
| 1640660X | 6.60 | 63 | 101 | 6.6 | £11.64 | In Stock | |
| 1640670X | 6.70 | 63 | 101 | 6.7 | £11.64 | In Stock | |
| 1640680X | 6.80 | 69 | 109 | 6.8 | £11.64 | In Stock | |
| 1640690X | 6.90 | 69 | 109 | 6.9 | £11.64 | In Stock | |
| 1640700X | 7.00 | 69 | 109 | 7 | £12.70 | In Stock | |
| 1640710X | 7.10 | 69 | 109 | 7.1 | £12.70 | In Stock | |
| 1640720X | 7.20 | 69 | 109 | 7.2 | £12.70 | In Stock | |
| 1640730X | 7.30 | 69 | 109 | 7.3 | £12.70 | In Stock | |
| 1640740X | 7.40 | 69 | 109 | 7.4 | £12.70 | In Stock | |
| 1640750X | 7.50 | 69 | 109 | 7.5 | £12.83 | In Stock | |
| 1640760X | 7.60 | 75 | 117 | 7.6 | £12.83 | In Stock | |
| 1640770X | 7.70 | 75 | 117 | 7.7 | £12.83 | In Stock | |
| 1640780X | 7.80 | 75 | 117 | 7.8 | £12.83 | In Stock | |
| 1640790X | 7.90 | 75 | 117 | 7.9 | £12.83 | In Stock | |
| 1640800X | 8.00 | 75 | 117 | 8 | £14.48 | In Stock | |
| 1640850X | 8.50 | 75 | 117 | 8.5 | £14.92 | In Stock | |
| 1640900X | 9.00 | 81 | 125 | 9 | £15.39 | In Stock | |
| 1640950X | 9.50 | 81 | 125 | 9.5 | £16.11 | In Stock | |
| 1641000X | 10.00 | 87 | 133 | 10 | £17.94 | In Stock | |
| 1641050X | 10.50 | 87 | 133 | 10.5 | £19.99 | In Stock | |
| 1641100X | 11.00 | 94 | 142 | 11 | £21.69 | In Stock | |
| 1641150X | 11.50 | 94 | 142 | 11.5 | £22.79 | In Stock | |
| 1641200X | 12.00 | 101 | 151 | 12 | £24.78 | In Stock | |
| 1641250X | 12.50 | 101 | 151 | 12.5 | £27.31 | In Stock | |
| 1641300X | 13.00 | 101 | 151 | 13 | £28.34 | In Stock |
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