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Somta Jobber Drills Parabolic Flute - UnCoated - 4.3mm
SKU:1640430
The Somta Parabolic Flute Jobber Drill, Uncoated, 4.3 mm, is a versatile general‑purpose drill bit built to handle everyday machining tasks with reliable results. Its parabolic flute design promo...
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Material Compatibility
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Specifications at a glance
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| Drill Diameter | 4.30 |
| Flute Length | 47 |
| Overall Length | 80 |
| Substrate | HSS-E |
£3.88
Prices shown ex. VAT
In Stock
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Learn more about Klarna
Description
The Somta Parabolic Flute Jobber Drill, Uncoated, 4.3 mm, is a versatile general‑purpose drill bit built to handle everyday machining tasks with reliable results. Its parabolic flute design promotes efficient chip evacuation and reduces cutting forces, delivering smoother drilling and cleaner holes across a variety of materials.
The uncoated construction aids heat dissipation during drilling, making it suitable for stainless steel, alloy steels, cast iron, and non‑ferrous metals. With sharp cutting edges, this drill delivers precise holes with minimal burrs, helping you achieve consistent finishes and dependable performance through busy workflows.
- Parabolic flute geometry: Enables fast chip evacuation and reduces cutting forces for smoother, more controllable drilling in a wide range of materials.
- Uncoated construction for heat dissipation: Bare substrate helps dissipate heat during drilling, supporting reliable performance when drilling stainless steel, alloy steels, cast iron, and non‑ferrous metals.
- Sharp edges for clean holes: Delivers precise, burr-minimized holes with consistent results in everyday drilling tasks.
This combination supports faster setup, less downtime from chip clogging, and more consistent hole quality from part to part. The 4.3 mm size makes it a practical choice for quick tasks or as a dependable mid-range bit in a general-purpose drill set, helping you complete projects with confidence and fewer reworks.
Part Numbers
- Protool Part Number
- 1640430
- Brand
- Somta
- Category
- Drill
No downloads are attached to this product yet.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
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.
Ask our technical team about this tool
Full Range: Somta Parabolic Flute Jobber Drills UnCoated (164)
View full collection →You are viewing 1640430. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| 1640100 | 1.00 | 12 | 34 | 1 | £1.59 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640102 | No.60 | 12 | 34 | No.60 | £1.70 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640104 | No.59 | 12 | 34 | No.59 | £1.70 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640107 | No.58 | 14 | 36 | No.58 | £1.70 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640109 | No.57 | 14 | 36 | No.57 | £1.70 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640110 | 1.10 | 14 | 36 | 1.1 | £1.57 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640118 | No.56 | 14 | 36 | No.56 | £1.93 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640119 | 3/64 | 16 | 38 | 3/64″ | £1.93 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640120 | 1.20 | 16 | 38 | 1.2 | £1.93 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640130 | 1.30 | 16 | 38 | 1.3 | £1.93 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640132 | No.55 | 16 | 38 | No.55 | £2.01 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640139 | No.54 | 18 | 40 | No.54 | £2.29 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640140 | 1.40 | 18 | 40 | 1.4 | £2.29 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640150 | 1.50 | 18 | 40 | 1.5 | £2.23 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640152 | No.53 | 20 | 43 | No.53 | £2.37 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640159 | 1/16 | 20 | 43 | 1/16″ | £2.33 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640160 | 1.60 | 20 | 43 | 1.6 | £2.20 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640161 | No.52 | 20 | 43 | No.52 | £2.29 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640169 | No.51 | 20 | 43 | No.51 | £2.29 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640170 | 1.70 | 20 | 43 | 1.7 | £2.23 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640178 | No.50 | 22 | 46 | No.50 | £2.29 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640180 | 1.80 | 22 | 46 | 1.8 | £2.23 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640185 | No.49 | 22 | 46 | No.49 | £2.29 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640190 | 1.90 | 22 | 46 | 1.9 | £2.23 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640193 | No.48 | 24 | 49 | No.48 | £2.61 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640198 | 5/64 | 24 | 49 | 5/64″ | £2.57 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640199 | No.47 | 24 | 49 | No.47 | £2.37 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640200 | 2.00 | 24 | 49 | 2 | £2.33 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640206 | No.46 | 24 | 49 | No.46 | £2.48 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640208 | No.45 | 24 | 49 | No.45 | £2.48 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640210 | 2.10 | 24 | 49 | 2.1 | £2.42 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640218 | No.44 | 27 | 53 | No.44 | £2.48 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640220 | 2.20 | 27 | 53 | 2.2 | £2.42 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640226 | No.43 | 27 | 53 | No.43 | £2.48 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640230 | 2.30 | 27 | 53 | 2.3 | £2.42 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640237 | No.42 | 30 | 57 | No.42 | £2.57 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640238 | 3/32 | 30 | 57 | 3/32″ | £2.50 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640240 | 2.40 | 30 | 57 | 2.4 | £2.48 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640244 | No.41 | 30 | 57 | No.41 | £2.57 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640249 | No.40 | 30 | 57 | No.40 | £2.57 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640250 | 2.50 | 30 | 57 | 2.5 | £2.50 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640253 | No.39 | 30 | 57 | No.39 | £2.69 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640258 | No.38 | 30 | 57 | No.38 | £2.69 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640260 | 2.60 | 30 | 57 | 2.6 | £2.65 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640264 | No.37 | 30 | 57 | No.37 | £2.73 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640270 | 2.70 | 33 | 61 | 2.7 | £2.65 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640271 | No.36 | 33 | 61 | No.36 | £2.73 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640278 | 7/64 | 33 | 61 | 7/64″ | £2.65 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640279 | No.35 | 33 | 61 | No.35 | £2.73 per item · pack of 10 | 1-2 days | Sold in packs of 10 |
| 1640280 | 2.80 | 33 | 61 | 2.8 | £2.65 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640282 | No.34 | 33 | 61 | No.34 | £2.73 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640287 | No.33 | 33 | 61 | No.33 | £2.73 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640290 | 2.90 | 33 | 61 | 2.9 | £2.57 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640295 | No.32 | 33 | 61 | No.32 | £2.61 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640300 | 3.00 | 33 | 61 | 3 | £2.57 per item · pack of 10 | In Stock | Sold in packs of 10 |
| 1640305 | No.31 | 36 | 65 | No.31 | £2.80 | In Stock | |
| 1640310 | 3.10 | 36 | 65 | 3.1 | £2.80 | In Stock | |
| 1640318 | 1/8 | 36 | 65 | 1/8″ | £2.80 | In Stock | |
| 1640320 | 3.20 | 36 | 65 | 3.2 | £2.73 | In Stock | |
| 1640326 | No.30 | 36 | 65 | No.30 | £2.80 | In Stock | |
| 1640330 | 3.30 | 36 | 65 | 3.3 | £2.73 | 1-2 days | |
| 1640340 | 3.40 | 39 | 70 | 3.4 | £2.93 | In Stock | |
| 1640345 | No.29 | 39 | 70 | No.29 | £2.93 | In Stock | |
| 1640350 | 3.50 | 39 | 70 | 3.5 | £2.88 | In Stock | |
| 1640357 | 9/64 | 39 | 70 | 9/64″ | £3.29 | In Stock | |
| 1640373 | No.26 | 39 | 70 | No.26 | £3.33 | In Stock | |
| 1640379 | No.25 | 43 | 75 | No.25 | £3.33 | In Stock | |
| 1640380 | 3.80 | 43 | 75 | 3.8 | £3.29 | In Stock | |
| 1640386 | No.24 | 43 | 75 | No.24 | £3.37 | In Stock | |
| 1640390 | 3.90 | 43 | 75 | 3.9 | £3.37 | In Stock | |
| 1640391 | No.23 | 43 | 75 | No.23 | £3.37 | In Stock | |
| 1640397 | 5/32 | 43 | 75 | 5/32″ | £3.37 | In Stock | |
| 1640399 | No.22 | 43 | 75 | No.22 | £3.37 | In Stock | |
| 1640400 | 4.00 | 43 | 75 | 4 | £3.33 | In Stock | |
| 1640404 | No.21 | 43 | 75 | No.21 | £3.69 | In Stock | |
| 1640409 | No.20 | 43 | 75 | No.20 | £3.69 | In Stock | |
| 1640410 | 4.10 | 43 | 75 | 4.1 | £3.69 | In Stock | |
| 1640420 | 4.20 | 43 | 75 | 4.2 | £3.69 | In Stock | |
| 1640422 | No.19 | 43 | 75 | No.19 | £3.79 | In Stock | |
| 1640430 Viewing | 4.30 | 47 | 80 | 4.3 | £3.88 | In Stock | |
| 1640431 | No.18 | 47 | 80 | No.18 | £3.88 | In Stock | |
| 1640437 | 11/64 | 47 | 80 | 11/64″ | £3.84 | In Stock | |
| 1640439 | No.17 | 47 | 80 | No.17 | £3.84 | In Stock | |
| 1640440 | 4.40 | 47 | 80 | 4.4 | £3.84 | In Stock | |
| 1640449 | No.16 | 47 | 80 | No.16 | £3.84 | In Stock | |
| 1640450 | 4.50 | 47 | 80 | 4.5 | £3.79 | In Stock | |
| 1640476 | 3/16 | 52 | 86 | 3/16″ | £4.11 | In Stock | |
| 1640479 | No.12 | 52 | 86 | No.12 | £4.11 | In Stock | |
| 1640480 | 4.80 | 52 | 86 | 4.8 | £4.11 | In Stock | |
| 1640485 | No.11 | 52 | 86 | No.11 | £4.11 | In Stock | |
| 1640490 | 4.90 | 52 | 86 | 4.9 | £4.07 | In Stock | |
| 1640492 | No.10 | 52 | 86 | No.10 | £4.11 | In Stock | |
| 1640498 | No.9 | 52 | 86 | No.9 | £4.11 | In Stock | |
| 1640500 | 5.00 | 52 | 86 | 5 | £4.07 | In Stock | |
| 1640506 | No.8 | 52 | 86 | No.8 | £4.71 | In Stock | |
| 1640510 | 5.10 | 52 | 86 | 5.1 | £4.71 | In Stock | |
| 1640511 | No.7 | 52 | 86 | No.7 | £4.71 | In Stock | |
| 1640516 | 13/64 | 52 | 86 | 13/64″ | £4.71 | In Stock | |
| 1640518 | No.6 | 52 | 86 | No.6 | £4.71 | In Stock | |
| 1640520 | 5.20 | 52 | 86 | 5.2 | £4.66 | In Stock | |
| 1640522 | No.5 | 52 | 86 | No.5 | £4.90 | In Stock | |
| 1640530 | 5.30 | 52 | 86 | 5.3 | £4.66 | In Stock | |
| 1640532 | No.4 | 57 | 93 | No.4 | £4.92 | In Stock | |
| 1640540 | 5.40 | 57 | 93 | 5.4 | £4.83 | In Stock | |
| 1640541 | No.3 | 57 | 93 | No.3 | £4.83 | In Stock | |
| 1640550 | 5.50 | 57 | 93 | 5.5 | £4.83 | In Stock | |
| 1640556 | 7/32 | 57 | 93 | 7/32″ | £5.70 | 1-2 days | |
| 1640560 | 5.60 | 57 | 93 | 5.6 | £5.70 | In Stock | |
| 1640561 | No.2 | 57 | 93 | No.2 | £5.70 | In Stock | |
| 1640570 | 5.70 | 57 | 93 | 5.7 | £5.62 | In Stock | |
| 1640579 | No.1 | 57 | 93 | No.1 | £5.62 | In Stock | |
| 1640580 | 5.80 | 57 | 93 | 5.8 | £5.62 | In Stock | |
| 1640590 | 5.90 | 57 | 93 | 5.9 | £5.51 | In Stock | |
| 1640594 | LTR.A | 57 | 93 | LTR.A | £5.51 | In Stock | |
| 1640595 | 15/64 | 57 | 93 | 15/64″ | £5.51 | In Stock | |
| 1640600 | 6.00 | 57 | 93 | 6 | £5.47 | In Stock | |
| 1640605 | LTR.B | 63 | 101 | LTR.B | £6.42 | In Stock | |
| 1640610 | 6.10 | 63 | 101 | 6.1 | £6.42 | In Stock | |
| 1640615 | LTR.C | 63 | 101 | LTR.C | £6.42 | In Stock | |
| 1640620 | 6.20 | 63 | 101 | 6.2 | £6.34 | In Stock | |
| 1640625 | LTR.D | 63 | 101 | LTR.D | £6.34 | In Stock | |
| 1640630 | 6.30 | 63 | 101 | 6.3 | £6.34 | In Stock | |
| 1640634 | LTR.E | 63 | 101 | LTR.E | £6.30 | In Stock | |
| 1640635 | 1/4 | 63 | 101 | 1/4″ | £6.30 | In Stock | |
| 1640640 | 6.40 | 63 | 101 | 6.4 | £6.30 | In Stock | |
| 1640650 | 6.50 | 63 | 101 | 6.5 | £6.21 | In Stock | |
| 1640653 | LTR.F | 63 | 101 | LTR.F | £7.27 | In Stock | |
| 1640660 | 6.60 | 63 | 101 | 6.6 | £7.17 | In Stock | |
| 1640663 | LTR.G | 63 | 101 | LTR.G | £7.17 | In Stock | |
| 1640670 | 6.70 | 63 | 101 | 6.7 | £7.08 | In Stock | |
| 1640676 | LTR.H | 69 | 109 | LTR.H | £7.40 | In Stock | |
| 1640677 | 17/64 | 69 | 109 | 17/64″ | £7.40 | In Stock | |
| 1640680 | 6.80 | 69 | 109 | 6.8 | £7.29 | In Stock | |
| 1640690 | 6.90 | 69 | 109 | 6.9 | £7.40 | In Stock | |
| 1640691 | LTR.I | 69 | 109 | LTR.I | £7.40 | In Stock | |
| 1640700 | 7.00 | 69 | 109 | 7 | £7.29 | In Stock | |
| 1640704 | LTR.J | 69 | 109 | LTR.J | £8.27 | In Stock | |
| 1640710 | 7.10 | 69 | 109 | 7.1 | £8.27 | In Stock | |
| 1640713 | LTR.K | 69 | 109 | LTR.K | £8.27 | In Stock | |
| 1640714 | 9/32 | 69 | 109 | 9/32″ | £8.27 | In Stock | |
| 1640720 | 7.20 | 69 | 109 | 7.2 | £8.23 | In Stock | |
| 1640730 | 7.30 | 69 | 109 | 7.3 | £8.23 | In Stock | |
| 1640737 | LTR.L | 69 | 109 | LTR.L | £8.12 | In Stock | |
| 1640740 | 7.40 | 69 | 109 | 7.4 | £8.12 | In Stock | |
| 1640749 | LTR.M | 69 | 109 | LTR.M | £8.12 | In Stock | |
| 1640750 | 7.50 | 69 | 109 | 7.5 | £8.03 | In Stock | |
| 1640754 | 19/64 | 75 | 117 | 19/64″ | £9.46 | In Stock | |
| 1640760 | 7.60 | 75 | 117 | 7.6 | £9.46 | In Stock | |
| 1640767 | LTR.N | 75 | 117 | LTR.N | £9.46 | In Stock | |
| 1640770 | 7.70 | 75 | 117 | 7.7 | £9.39 | In Stock | |
| 1640780 | 7.80 | 75 | 117 | 7.8 | £9.39 | In Stock | |
| 1640790 | 7.90 | 75 | 117 | 7.9 | £9.31 | In Stock | |
| 1640794 | 5/16 | 75 | 117 | 5/16″ | £9.31 | In Stock | |
| 1640800 | 8.00 | 75 | 117 | 8 | £9.22 | In Stock | |
| 1640843 | LTR.Q | 75 | 117 | LTR.Q | £10.20 | In Stock | |
| 1640850 | 8.50 | 75 | 117 | 8.5 | £10.09 | In Stock | |
| 1640873 | 11/32 | 81 | 125 | 11/32″ | £11.91 | In Stock | |
| 1640884 | LTR.S | 81 | 125 | LTR.S | £11.83 | In Stock | |
| 1640900 | 9.00 | 81 | 125 | 9 | £11.70 | In Stock | |
| 1640913 | 23/64 | 81 | 125 | 23/64″ | £12.97 | In Stock | |
| 1640935 | LTR.U | 81 | 125 | LTR.U | £12.83 | In Stock | |
| 1640950 | 9.50 | 81 | 125 | 9.5 | £12.74 | In Stock | |
| 1640953 | 3/8 | 87 | 133 | 3/8″ | £14.69 | In Stock | |
| 1641000 | 10.00 | 87 | 133 | 10 | £14.61 | In Stock | |
| 1641050 | 10.50 | 87 | 133 | 10.5 | £16.07 | In Stock | |
| 1641072 | 27/64 | 94 | 142 | 27/64″ | £18.13 | In Stock | |
| 1641100 | 11.00 | 94 | 142 | 11 | £17.85 | In Stock | |
| 1641150 | 11.50 | 94 | 142 | 11.5 | £18.95 | In Stock | |
| 1641200 | 12.00 | 101 | 151 | 12 | £21.05 | In Stock | |
| 1641250 | 12.50 | 101 | 151 | 12.5 | £23.64 | In Stock | |
| 1641269 | 1/2 | 101 | 151 | 1/2″ | £24.74 | In Stock | |
| 1641300 | 13.00 | 101 | 151 | 13 | £24.34 | In Stock |
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