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OSG Slow Spiral Carbide Drill - Solid - Uncoated - 11.5mm
| Drill Diameter | 11.50 |
| Flute Length | 54 |
| Overall Length | 90 |
| Shank Diameter | 11.5 |
Learn more about Klarna
Description
The OSG Slow Spiral Carbide Drill is a solid carbide drilling tool engineered for precision and versatility. With an 11.5 mm diameter and an uncoated finish, it delivers clean, accurate holes across a wide range of materials.
Designed for engineers, buyers, tradespeople, hobbyists, and non-technical customers alike, this drill excels in metalworking, plastics, and composites thanks to its slow spiral design. The geometry promotes controlled chip evacuation, helping minimize workpiece distortion and heat buildup so you can drill with confidence on every job.
- Slow spiral geometry: Promotes controlled chip evacuation and smoother cutting, helping maintain hole quality and reduce workpiece distortion across metals, plastics, and composites.
- Solid carbide construction: Delivers exceptional rigidity, wear resistance, and heat tolerance for long tool life and consistently sized holes in demanding materials.
- Uncoated surface: Broad material compatibility without coating-related constraints, plus straightforward maintenance and re-sharpening when needed.
When you need dependable drilling performance, this drill keeps your workflow moving. The combination of slow spiral geometry, carbide rigidity, and uncoated versatility translates to cleaner holes, fewer reworks, and reduced downtime—delivering consistent results whether you’re running a production batch or completing a precise, single-part job.
Part Numbers
- Protool Part Number
- OSG-215-4528
- Brand
- OSG
- Category
- Drill
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: OSG Slow Spiral Carbide Drill - Solid - Uncoated
View full collection →You are viewing OSG-215-4528. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Coated | Coolant | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-215-0984 | 2.50 | 21 | 46 | 2.5 | Uncoated | NO | £11.96 | 1-2 days | |
| OSG-215-4252 | 10.80 | 52 | 87 | 10.8 | Uncoated | NO | £98.98 | 1-2 days | |
| OSG-215-1299 | 3.30 | 24 | 52 | 3.3 | Uncoated | NO | £15.83 | 1-2 days | |
| OSG-215-1181 | 3.00 | 22 | 48 | 3 | Uncoated | NO | £13.43 | 1-2 days | |
| OSG-215-0945 | 2.40 | 21 | 46 | 2.4 | Uncoated | NO | £11.96 | 1-2 days | |
| OSG-215-0906 | 2.30 | 19 | 45 | 2.3 | Uncoated | NO | £11.96 | 1-2 days | |
| OSG-215-0591 | 1.50 | 13 | 38 | 1.5 | Uncoated | NO | £9.98 | 1-2 days | |
| OSG-215-4724 | 12.00 | 54 | 92 | 12 | Uncoated | NO | £111.28 | 1-2 days | |
| OSG-215-4685 | 11.90 | 54 | 92 | 11.9 | Uncoated | NO | £111.28 | 1-2 days | |
| OSG-215-4646 | 11.80 | 54 | 92 | 11.8 | Uncoated | NO | £111.28 | 1-2 days | |
| OSG-215-4606 | 11.70 | 54 | 92 | 11.7 | Uncoated | NO | £111.28 | 1-2 days | |
| OSG-215-4567 | 11.60 | 54 | 92 | 11.6 | Uncoated | NO | £111.28 | 1-2 days | |
| OSG-215-4528 Viewing | 11.50 | 54 | 90 | 11.5 | Uncoated | NO | £107.56 | 1-2 days | |
| OSG-215-4488 | 11.40 | 54 | 90 | 11.4 | Uncoated | NO | £107.56 | 1-2 days | |
| OSG-215-4449 | 11.30 | 54 | 90 | 11.3 | Uncoated | NO | £107.56 | 1-2 days | |
| OSG-215-4409 | 11.20 | 54 | 90 | 11.2 | Uncoated | NO | £107.56 | 1-2 days | |
| OSG-215-4370 | 11.10 | 52 | 87 | 11.1 | Uncoated | NO | £107.56 | 1-2 days | |
| OSG-215-4331 | 11.00 | 52 | 87 | 11 | Uncoated | NO | £98.98 | 1-2 days | |
| OSG-215-4291 | 10.90 | 52 | 87 | 10.9 | Uncoated | NO | £98.98 | 1-2 days | |
| OSG-215-4213 | 10.70 | 51 | 86 | 10.7 | Uncoated | NO | £98.98 | 1-2 days | |
| OSG-215-4173 | 10.60 | 51 | 86 | 10.6 | Uncoated | NO | £98.98 | 1-2 days | |
| OSG-215-4134 | 10.50 | 51 | 86 | 10.5 | Uncoated | NO | £85.78 | 1-2 days | |
| OSG-215-4094 | 10.40 | 51 | 86 | 10.4 | Uncoated | NO | £85.78 | 1-2 days | |
| OSG-215-4055 | 10.30 | 49 | 84 | 10.3 | Uncoated | NO | £85.78 | 1-2 days | |
| OSG-215-4016 | 10.20 | 49 | 84 | 10.2 | Uncoated | NO | £85.78 | 1-2 days | |
| OSG-215-3976 | 10.10 | 49 | 84 | 10.1 | Uncoated | NO | £85.78 | 1-2 days | |
| OSG-215-3937 | 10.00 | 48 | 83 | 10 | Uncoated | NO | £79.81 | 1-2 days | |
| OSG-215-3898 | 9.90 | 48 | 83 | 9.9 | Uncoated | NO | £79.81 | 1-2 days | |
| OSG-215-3858 | 9.80 | 48 | 83 | 9.8 | Uncoated | NO | £79.81 | 1-2 days | |
| OSG-215-3819 | 9.70 | 48 | 83 | 9.7 | Uncoated | NO | £79.81 | 1-2 days | |
| OSG-215-3780 | 9.60 | 48 | 83 | 9.6 | Uncoated | NO | £79.81 | 1-2 days | |
| OSG-215-3740 | 9.50 | 46 | 79 | 9.5 | Uncoated | NO | £67.35 | 1-2 days | |
| OSG-215-3701 | 9.40 | 46 | 79 | 9.4 | Uncoated | NO | £67.35 | 1-2 days | |
| OSG-215-3661 | 9.30 | 46 | 79 | 9.3 | Uncoated | NO | £67.35 | 1-2 days | |
| OSG-215-3622 | 9.20 | 46 | 79 | 9.2 | Uncoated | NO | £67.35 | 1-2 days | |
| OSG-215-3583 | 9.10 | 44 | 78 | 9.1 | Uncoated | NO | £67.35 | 1-2 days | |
| OSG-215-3543 | 9.00 | 44 | 78 | 9 | Uncoated | NO | £60.66 | 1-2 days | |
| OSG-215-3504 | 8.90 | 44 | 78 | 8.9 | Uncoated | NO | £60.66 | 1-2 days | |
| OSG-215-3465 | 8.80 | 44 | 78 | 8.8 | Uncoated | NO | £60.66 | 1-2 days | |
| OSG-215-3425 | 8.70 | 43 | 76 | 8.7 | Uncoated | NO | £60.66 | 1-2 days | |
| OSG-215-3386 | 8.60 | 43 | 76 | 8.6 | Uncoated | NO | £60.66 | 1-2 days | |
| OSG-215-3346 | 8.50 | 43 | 76 | 8.5 | Uncoated | NO | £52.46 | 1-2 days | |
| OSG-215-3307 | 8.40 | 43 | 75 | 8.4 | Uncoated | NO | £52.46 | 1-2 days | |
| OSG-215-3268 | 8.30 | 43 | 75 | 8.3 | Uncoated | NO | £52.46 | 1-2 days | |
| OSG-215-3228 | 8.20 | 43 | 75 | 8.2 | Uncoated | NO | £52.46 | 1-2 days | |
| OSG-215-3189 | 8.10 | 43 | 75 | 8.1 | Uncoated | NO | £52.46 | 1-2 days | |
| OSG-215-3150 | 8.00 | 41 | 71 | 8 | Uncoated | NO | £47.86 | 1-2 days | |
| OSG-215-3110 | 7.90 | 41 | 71 | 7.9 | Uncoated | NO | £47.86 | 1-2 days | |
| OSG-215-3071 | 7.80 | 41 | 71 | 7.8 | Uncoated | NO | £47.86 | 1-2 days | |
| OSG-215-3031 | 7.70 | 41 | 71 | 7.7 | Uncoated | NO | £47.86 | 1-2 days | |
| OSG-215-2992 | 7.60 | 41 | 71 | 7.6 | Uncoated | NO | £47.86 | 1-2 days | |
| OSG-215-2953 | 7.50 | 40 | 70 | 7.5 | Uncoated | NO | £42.27 | 1-2 days | |
| OSG-215-2913 | 7.40 | 40 | 70 | 7.4 | Uncoated | NO | £42.27 | 1-2 days | |
| OSG-215-2874 | 7.30 | 40 | 70 | 7.3 | Uncoated | NO | £42.27 | 1-2 days | |
| OSG-215-2835 | 7.20 | 40 | 70 | 7.2 | Uncoated | NO | £42.27 | 1-2 days | |
| OSG-215-2795 | 7.10 | 38 | 69 | 7.1 | Uncoated | NO | £42.27 | 1-2 days | |
| OSG-215-2756 | 7.00 | 38 | 68 | 7 | Uncoated | NO | £38.54 | 1-2 days | |
| OSG-215-2717 | 6.90 | 38 | 68 | 6.9 | Uncoated | NO | £38.54 | 1-2 days | |
| OSG-215-2677 | 6.80 | 38 | 68 | 6.8 | Uncoated | NO | £38.54 | 1-2 days | |
| OSG-215-2638 | 6.70 | 37 | 67 | 6.7 | Uncoated | NO | £38.54 | 1-2 days | |
| OSG-215-2598 | 6.60 | 37 | 67 | 6.6 | Uncoated | NO | £38.54 | 1-2 days | |
| OSG-215-2559 | 6.50 | 35 | 63 | 6.5 | Uncoated | NO | £32.94 | 1-2 days | |
| OSG-215-2520 | 6.40 | 35 | 63 | 6.4 | Uncoated | NO | £32.94 | 1-2 days | |
| OSG-215-2480 | 6.30 | 35 | 63 | 6.3 | Uncoated | NO | £32.94 | 1-2 days | |
| OSG-215-2441 | 6.20 | 35 | 63 | 6.2 | Uncoated | NO | £32.94 | 1-2 days | |
| OSG-215-2402 | 6.10 | 35 | 63 | 6.1 | Uncoated | NO | £32.94 | 1-2 days | |
| OSG-215-2362 | 6.00 | 33 | 61 | 6 | Uncoated | NO | £29.48 | 1-2 days | |
| OSG-215-2323 | 5.90 | 33 | 61 | 5.9 | Uncoated | NO | £29.48 | 1-2 days | |
| OSG-215-2283 | 5.80 | 33 | 61 | 5.8 | Uncoated | NO | £29.48 | 1-2 days | |
| OSG-215-2244 | 5.70 | 33 | 61 | 5.7 | Uncoated | NO | £29.48 | 1-2 days | |
| OSG-215-2205 | 5.60 | 32 | 60 | 5.6 | Uncoated | NO | £29.48 | 1-2 days | |
| OSG-215-2165 | 5.50 | 32 | 60 | 5.5 | Uncoated | NO | £26.11 | 1-2 days | |
| OSG-215-2126 | 5.40 | 32 | 60 | 5.4 | Uncoated | NO | £26.11 | 1-2 days | |
| OSG-215-2087 | 5.30 | 32 | 60 | 5.3 | Uncoated | NO | £26.11 | 1-2 days | |
| OSG-215-2047 | 5.20 | 32 | 60 | 5.2 | Uncoated | NO | £26.11 | 1-2 days | |
| OSG-215-2008 | 5.10 | 30 | 57 | 5.1 | Uncoated | NO | £26.11 | 1-2 days | |
| OSG-215-1968 | 5.00 | 30 | 57 | 5 | Uncoated | NO | £23.02 | 1-2 days | |
| OSG-215-1929 | 4.90 | 30 | 57 | 4.9 | Uncoated | NO | £23.02 | 1-2 days | |
| OSG-215-1890 | 4.80 | 30 | 57 | 4.8 | Uncoated | NO | £23.02 | 1-2 days | |
| OSG-215-1850 | 4.70 | 29 | 55 | 4.7 | Uncoated | NO | £23.02 | 1-2 days | |
| OSG-215-1811 | 4.60 | 29 | 55 | 4.6 | Uncoated | NO | £23.02 | 1-2 days | |
| OSG-215-1772 | 4.50 | 29 | 55 | 4.5 | Uncoated | NO | £21.14 | 1-2 days | |
| OSG-215-1732 | 4.40 | 29 | 55 | 4.4 | Uncoated | NO | £21.14 | 1-2 days | |
| OSG-215-1693 | 4.30 | 25 | 52 | 4.3 | Uncoated | NO | £21.14 | 1-2 days | |
| OSG-215-1654 | 4.20 | 25 | 52 | 4.2 | Uncoated | NO | £21.14 | 1-2 days | |
| OSG-215-1614 | 4.10 | 25 | 52 | 4.1 | Uncoated | NO | £21.14 | 1-2 days | |
| OSG-215-1575 | 4.00 | 25 | 52 | 4 | Uncoated | NO | £17.88 | 1-2 days | |
| OSG-215-1535 | 3.90 | 25 | 52 | 3.9 | Uncoated | NO | £17.88 | 1-2 days | |
| OSG-215-1496 | 3.80 | 25 | 52 | 3.8 | Uncoated | NO | £17.88 | 1-2 days | |
| OSG-215-1457 | 3.70 | 25 | 52 | 3.7 | Uncoated | NO | £17.88 | 1-2 days | |
| OSG-215-1417 | 3.60 | 24 | 52 | 3.6 | Uncoated | NO | £17.88 | 1-2 days | |
| OSG-215-1378 | 3.50 | 24 | 52 | 3.5 | Uncoated | NO | £15.83 | 1-2 days | |
| OSG-215-1339 | 3.40 | 24 | 52 | 3.4 | Uncoated | NO | £15.83 | 1-2 days | |
| OSG-215-1260 | 3.20 | 24 | 52 | 3.2 | Uncoated | NO | £15.83 | 1-2 days | |
| OSG-215-1220 | 3.10 | 22 | 48 | 3.1 | Uncoated | NO | £15.83 | 1-2 days | |
| OSG-215-1142 | 2.90 | 22 | 48 | 2.9 | Uncoated | NO | £13.43 | 1-2 days | |
| OSG-215-1102 | 2.80 | 22 | 48 | 2.8 | Uncoated | NO | £13.43 | 1-2 days | |
| OSG-215-1063 | 2.70 | 21 | 46 | 2.7 | Uncoated | NO | £13.43 | 1-2 days | |
| OSG-215-1024 | 2.60 | 21 | 46 | 2.6 | Uncoated | NO | £13.43 | 1-2 days | |
| OSG-215-0866 | 2.20 | 19 | 45 | 2.2 | Uncoated | NO | £11.96 | 1-2 days | |
| OSG-215-0827 | 2.10 | 19 | 45 | 2.1 | Uncoated | NO | £11.96 | 1-2 days | |
| OSG-215-0787 | 2.00 | 19 | 45 | 2 | Uncoated | NO | £10.58 | 1-2 days | |
| OSG-215-0748 | 1.90 | 18 | 43 | 1.9 | Uncoated | NO | £10.58 | 1-2 days | |
| OSG-215-0709 | 1.80 | 18 | 43 | 1.8 | Uncoated | NO | £10.58 | 1-2 days | |
| OSG-215-0669 | 1.70 | 18 | 43 | 1.7 | Uncoated | NO | £10.58 | 1-2 days | |
| OSG-215-0630 | 1.60 | 18 | 43 | 1.6 | Uncoated | NO | £10.58 | 1-2 days | |
| OSG-215-0551 | 1.40 | 13 | 38 | 1.4 | Uncoated | NO | £11.07 | 1-2 days | |
| OSG-215-0512 | 1.30 | 13 | 38 | 1.3 | Uncoated | NO | £11.07 | 1-2 days | |
| OSG-215-0472 | 1.20 | 13 | 38 | 1.2 | Uncoated | NO | £11.07 | 1-2 days | |
| OSG-215-0433 | 1.10 | 13 | 38 | 1.1 | Uncoated | NO | £11.07 | 1-2 days | |
| OSG-215-0394 | 1.00 | 13 | 38 | 1 | Uncoated | NO | £11.07 | 1-2 days |
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