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OSG 55° Helix Endmill Square Edge - Centre Cutting Regular Length - 16mm
| Cutter Diameter | 16 |
| Number of Flutes | 2 |
| Flute Length | 32 |
| Overall Length | 89 |
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Description
The OSG 55° Helix Endmill Square Edge is a 16 mm diameter, center-cutting tool designed for general milling, profiling, and slotting. With a regular-length flute design and a 55-degree helix, it promotes efficient chip evacuation and smoother cutting across a range of materials, making it a reliable choice for precision work and material removal.
- 55° Helix for efficient chip evacuation: The 55-degree helix angle helps chips move away from the cut quickly, reducing heat buildup and cutting forces for cooler, steadier performance and a cleaner finish.
- Square-edge design for precise material removal: A sharp, square edge delivers accurate milling and clean slots, supporting tight tolerances and stable engagement during every cut.
- Centre cutting with versatile, regular-length design: Centre-cutting capability enables plunging, slotting, and profiling in a single tool, while the regular-length flute balances rigidity and accessibility for a wide range of depths and materials.
This endmill combines reliable performance with practical versatility, helping you complete tasks faster, reduce rework, and maintain consistent quality across projects. Ideal for engineers, machinists, hobbyists, and maintenance teams, it delivers dependable results in everyday machining where precision and efficiency matter.
Part Numbers
- Protool Part Number
- OSG-402-629955
- 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 Square Edge - Centre Cutting Regular Length
View full collection →You are viewing OSG-402-629955. 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-402-118155 | 3 | 2 | 10 | 39 | 3 | £16.21 | In Stock | |
| OSG-402-157655 | 4 | 2 | 14 | 51 | 4 | £18.93 | In Stock | |
| OSG-402-196855 | 5 | 2 | 16 | 51 | 5 | £24.86 | In Stock | |
| OSG-402-236255 | 6 | 2 | 19 | 64 | 6 | £29.71 | In Stock | |
| OSG-402-315055 | 8 | 2 | 21 | 64 | 8 | £35.12 | In Stock | |
| OSG-402-393755 | 10 | 2 | 25 | 70 | 10 | £59.45 | In Stock | |
| OSG-402-472455 | 12 | 2 | 25 | 76 | 12 | £81.08 | In Stock | |
| OSG-402-551255 | 14 | 2 | 30 | 89 | 14 | £120.86 | In Stock | |
| OSG-402-629955 Viewing | 16 | 2 | 32 | 89 | 16 | £160.84 | In Stock | |
| OSG-402-708755 | 18 | 2 | 35 | 102 | 18 | £198.27 | In Stock | |
| OSG-402-787455 | 20 | 2 | 38 | 102 | 20 | £231.60 | In Stock | |
| OSG-402-984355 | 25 | 2 | 38 | 102 | 25 | £319.32 | In Stock |
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