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OSG 55° Helix Endmill Square Edge - Centre Cutting Regular Length - 3mm
| Cutter Diameter | 3 |
| Number of Flutes | 2 |
| Flute Length | 10 |
| Overall Length | 39 |
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Description
The OSG 55° Helix Endmill Square Edge with a regular-length design is a versatile tool built for a wide range of machining tasks. With a 3 mm diameter, this endmill is well-suited for precise milling, profiling, and slotting, delivering consistent results across a variety of materials. The 55-degree helix angle promotes efficient chip evacuation and helps reduce cutting forces, contributing to smoother cuts and better surface finishes.
- 55° Helix for Efficient Chip Evacuation: The steep helix angle moves chips away from the cut quickly, reducing heat buildup and cutting resistance for cleaner, more stable cuts at practical feed rates.
- Square Edge for Precise Material Removal: The square-edge geometry ensures clean, square corners and reliable material removal, helping maintain dimensional accuracy during profiling and slotting.
- Centre-Cutting for Versatile Machining: Center-cutting capability enables plunging and full-contour milling, offering flexibility to tackle grooves, slots, and complex geometries with a single tool.
Ideal for engineers, builders, machinists, hobbyists, and technicians, this endmill delivers dependable performance in general machining applications where precision and efficiency matter. Its regular-length design provides stable cutting action and predictable results, helping you maintain workflow continuity, reduce tool changes, and achieve repeatable finishes across projects.
Part Numbers
- Protool Part Number
- OSG-402-118155
- 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-402-118155. 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 Viewing | 3 | 2 | 10 | 39 | 3 | £14.40 | In Stock | |
| OSG-402-157655 | 4 | 2 | 14 | 51 | 4 | £16.82 | In Stock | |
| OSG-402-196855 | 5 | 2 | 16 | 51 | 5 | £22.09 | In Stock | |
| OSG-402-236255 | 6 | 2 | 19 | 64 | 6 | £26.41 | In Stock | |
| OSG-402-315055 | 8 | 2 | 21 | 64 | 8 | £31.23 | In Stock | |
| OSG-402-393755 | 10 | 2 | 25 | 70 | 10 | £52.85 | In Stock | |
| OSG-402-472455 | 12 | 2 | 25 | 76 | 12 | £72.07 | In Stock | |
| OSG-402-551255 | 14 | 2 | 30 | 89 | 14 | £107.43 | In Stock | |
| OSG-402-629955 | 16 | 2 | 32 | 89 | 16 | £134.03 | In Stock | |
| OSG-402-708755 | 18 | 2 | 35 | 102 | 18 | £165.23 | In Stock | |
| OSG-402-787455 | 20 | 2 | 38 | 102 | 20 | £193.00 | In Stock | |
| OSG-402-984355 | 25 | 2 | 38 | 102 | 25 | £266.10 | In Stock |
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