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Dormer Pramet C428 8.0mm HSS-E-Powder Metal Alcrona Primax Flatted Shank Multi-Flute Roughing (HRA) Standard Length End Mill DIN 844 K
| Cutter Diameter | 8 |
| Flute Length | 69 |
| Number of Flutes | 4 |
| Overall Length | 69 |
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Description
Meet the Dormer Pramet C428 8.0mm HSS-E-Powder Metall Alcrona Primax Flatted Shank Multi-Flute Roughing End Mill DIN 844 K — a short-series roughing tool designed for serious metal removal in demanding milling applications. Featuring an HRA asymmetrical fine-pitch profile and four flutes, it’s built for reliable performance in alloy and tool steels, stainless steels, and other tough materials.
- Diameter: 8.0 mm
- Number of flutes: 4-flute configuration
- Length of cut (LOC): 19 mm
- Overall length: 69 mm
- Shank type: Weldon shank, 10 mm
- Shank geometry: Flatted shank for secure clamping
- Material: Powder-metallurgy HSS-E for enhanced hardness and toughness
- Coating: Alcrona Primax for improved wear resistance
- Helix angle: 35° for efficient chip formation
- Rake angle: 12° to support shoulder milling, slot milling, and ramping
- Standard: DIN 844 K
- Flute design: Multi-flute, optimized for controlled material removal
- Applications: Shoulder milling, slot milling, ramping in a range of metals
- Compatible materials: Alloy steel, tool steel, stainless steel, cast iron, copper and copper alloys, high-temperature alloys
Designed to maximize rigidity and material removal in roughing operations, this end mill leverages a robust 4-flute geometry and a flatted Weldon shank to maintain secure, precise engagement in standard tool holders. The Alcrona Primax coating reduces wear and extends tool life, while the HSS-E base material delivers a balance between hardness and toughness necessary for demanding milling environments. The 35° helix and 12° rake enable smooth chip evacuation and stable shoulder milling, slotting, and ramping across a variety of workpieces, from alloy steels to high-temperature alloys. Ideal for professional machinists seeking consistent performance and predictable tool life in roughing tasks.
Part Numbers
- Protool Part Number
- DOR-C4288.0
- Brand
- Dormer Pramet
- Category
- End Mill
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
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: Dormer Pramet C428 HSS-E-Powder Metal Alcrona Primax Flatted Shank Multi-Flute Roughing (HRA) Standard Length End Mills DIN 844 K
View full collection →You are viewing DOR-C4288.0. Click any other SKU to view its full details.
| Product SKU | Cutter Diameter | Flute Length | Number of Flutes | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| DOR-C4286.0 | 6 | 57 | 4 | 57 | 6 | £50.75 | 2 days | |
| DOR-C4287.0 | 7 | 66 | 4 | 66 | 10 | £66.83 | 2 days | |
| DOR-C4288.0 Viewing | 8 | 69 | 4 | 69 | 10 | £59.99 | 2 days | |
| DOR-C4289.0 | 9 | 69 | 4 | 69 | 10 | £73.19 | 2 days | |
| DOR-C42810.0 | 10 | 72 | 4 | 72 | 10 | £65.88 | 2 days | |
| DOR-C42811.0 | 11 | 79 | 4 | 79 | 12 | £86.18 | 2 days | |
| DOR-C42812.0 | 12 | 83 | 4 | 83 | 12 | £77.98 | 2 days | |
| DOR-C42813.0 | 13 | 83 | 4 | 83 | 12 | £103.28 | 2 days | |
| DOR-C42814.0 | 14 | 83 | 4 | 83 | 12 | £97.13 | 2 days | |
| DOR-C42815.0 | 15 | 83 | 4 | 83 | 12 | £115.60 | 2 days | |
| DOR-C42816.0 | 16 | 92 | 4 | 92 | 16 | £116.28 | 2 days | |
| DOR-C42818.0 | 18 | 92 | 4 | 92 | 16 | £132.01 | 2 days | |
| DOR-C42820.0 | 20 | 104 | 4 | 104 | 20 | £153.90 | 2 days | |
| DOR-C42822.0 | 22 | 104 | 4 | 104 | 20 | £186.05 | 2 days | |
| DOR-C42825.0 | 25 | 121 | 6 | 121 | 25 | £240.77 | 2 days | |
| DOR-C42828.0 | 28 | 121 | 6 | 121 | 25 | £291.38 | 2 days | |
| DOR-C42830.0 | 30 | 121 | 6 | 121 | 25 | £300.96 | 2 days | |
| DOR-C42832.0 | 32 | 133 | 6 | 133 | 32 | £351.58 | 2 days |
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