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OSG Carbide Counter Boring End Mill Square Edge TiAlN Coated - Regular Length For General Applications - 4mm
| Cutter Diameter | 4 |
| Number of Flutes | 2 |
| Flute Length | 11 |
| Overall Length | 50 |
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Description
The OSG Carbide Counter Boring End Mill Square Edge is a 4 mm diameter, regular-length carbide tool designed for general machining tasks. It handles counterboring holes and a variety of milling jobs with precise, clean cuts, making it a reliable choice for shops and on-site work alike.
The TiAlN coating boosts wear resistance and heat tolerance, helping the tool last longer in demanding operations and maintain consistent performance across jobs.
- TiAlN-coated carbide for longer life: The TiAlN coating reduces wear and heat buildup, extending tool life and maintaining cutting performance through demanding cuts.
- Square-edge geometry for clean countersinks: Delivers precise, flat-bottom counterbores with smooth finishes and consistent diameters for high-quality hole prep.
- Regular-length design for versatile use: Balanced length and geometry support a wide range of pocket depths and setups, reducing the need for multiple tools.
Whether you’re a professional machinist, engineer, or hobbyist, this end mill provides reliable, repeatable results for everyday milling and counterboring tasks. The robust carbide core combined with the TiAlN coating helps you maintain tight tolerances, finish quality, and productivity by delivering durable performance and fewer tool changes on busy shop floors.
Part Numbers
- Protool Part Number
- OSG-48370040
- Brand
- OSG
- Category
- End Mill
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 Carbide Counter Boring End Mill Square Edge TiAlN Coated - Regular Length For General Applications
View full collection →You are viewing OSG-48370040. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| OSG-48370040 Viewing | 4 | 2 | 11 | 50 | 6 | £67.20 | 1-2 days | |
| OSG-48370050 | 5 | 2 | 13 | 60 | 6 | £67.20 | 1-2 days | |
| OSG-48370060 | 6 | 2 | 13 | 60 | 6 | £76.46 | In Stock | |
| OSG-48370070 | 7 | 2 | 16 | 70 | 8 | £97.92 | 1-2 days | |
| OSG-48370080 | 8 | 2 | 19 | 70 | 8 | £97.92 | 1-2 days | |
| OSG-48370090 | 9 | 2 | 19 | 80 | 10 | £129.53 | 1-2 days | |
| OSG-48370100 | 10 | 2 | 22 | 80 | 10 | £129.53 | 1-2 days |
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