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OSG 55° Helix Endmill Corner Radius - Centre Cutting Long Length - 16mm x R3
| Cutter Diameter | 16 |
| Number of Flutes | 2 |
| Flute Length | 57 |
| Overall Length | 127 |
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Description
The OSG 55° Helix Endmill, 16 mm diameter with an R3 corner radius, is a versatile cutting tool built for a wide range of milling tasks. The 55-degree helix angle promotes efficient chip evacuation and lowers cutting forces, delivering dependable performance in profiling, slotting, and general milling across materials.
With centre-cutting capability and a long-length design, this endmill offers extended reach for deep pockets and tight shoulders while maintaining stable cutting and smooth finishes. The combination of these features supports deeper machining work without sacrificing precision or surface quality.
- 55° Helix for Efficient Cutting and Chip Evacuation: Optimizes chip flow and reduces cutting forces, helping maintain steady feeds, lower heat, and longer tool life in demanding milling, profiling, and slotting tasks.
- Corner Radius (R3) for Smoother Finish and Versatility: The corner radius delivers cleaner edges, smoother transitions at corners, and improved surface finishes on complex profiles and slots.
- Long-Length Centre-Cutting Design for Deep Reach and Plunging: Extended reach enables cutting in deep pockets and tight areas, while centre-cutting geometry allows plunging and slotting with consistent stability.
This endmill is designed to deliver reliable, repeatable results across a variety of materials and applications. By combining a 55° helix, a practical R3 corner radius, and a long-length, centre-cutting geometry, it supports efficient workflows, reduces downtime from tool changes, and helps you achieve high-quality finishes with confidence.
Part Numbers
- Protool Part Number
- OSG-462-629955R30
- 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 55° Helix Endmill Corner Radius - Centre Cutting Long Length
View full collection →You are viewing OSG-462-629955R30. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Number of Flutes | Flute Length | Overall Length | Shank Diameter | Radius | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|---|
| OSG-462-236255R03 | 6 | 2 | 28 | 76 | 6 | 0.3 | £37.13 | In Stock | |
| OSG-462-236255R05 | 6 | 2 | 28 | 76 | 6 | 0.5 | £37.13 | In Stock | |
| OSG-462-236255R10 | 6 | 2 | 28 | 76 | 6 | 1 | £37.13 | In Stock | |
| OSG-462-315055R03 | 8 | 2 | 29 | 76 | 8 | 0.3 | £43.91 | In Stock | |
| OSG-462-315055R05 | 8 | 2 | 29 | 76 | 8 | 0.5 | £43.91 | In Stock | |
| OSG-462-315055R10 | 8 | 2 | 29 | 76 | 8 | 1 | £43.91 | In Stock | |
| OSG-462-315055R15 | 8 | 2 | 29 | 76 | 8 | 1.5 | £43.91 | In Stock | |
| OSG-462-393755R05 | 10 | 2 | 32 | 76 | 10 | 0.5 | £74.31 | In Stock | |
| OSG-462-393755R10 | 10 | 2 | 32 | 76 | 10 | 1 | £74.31 | In Stock | |
| OSG-462-393755R15 | 10 | 2 | 32 | 76 | 10 | 1.5 | £74.31 | In Stock | |
| OSG-462-393755R20 | 10 | 2 | 32 | 76 | 10 | 2 | £74.31 | In Stock | |
| OSG-462-472455R05 | 12 | 2 | 51 | 102 | 12 | 0.5 | £101.32 | In Stock | |
| OSG-462-472455R10 | 12 | 2 | 51 | 102 | 12 | 1 | £101.32 | In Stock | |
| OSG-462-472455R15 | 12 | 2 | 51 | 102 | 12 | 1.5 | £101.32 | In Stock | |
| OSG-462-472455R20 | 12 | 2 | 51 | 102 | 12 | 2 | £101.32 | In Stock | |
| OSG-462-472455R30 | 12 | 2 | 51 | 102 | 12 | 3 | £101.32 | In Stock | |
| OSG-462-629955R05 | 16 | 2 | 57 | 127 | 16 | 0.5 | £201.06 | In Stock | |
| OSG-462-629955R10 | 16 | 2 | 57 | 127 | 16 | 1 | £201.06 | In Stock | |
| OSG-462-629955R15 | 16 | 2 | 57 | 127 | 16 | 1.5 | £201.06 | In Stock | |
| OSG-462-629955R20 | 16 | 2 | 57 | 127 | 16 | 2 | £201.06 | In Stock | |
| OSG-462-629955R30 Viewing | 16 | 2 | 57 | 127 | 16 | 3 | £201.06 | In Stock |
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