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Dormer Pramet C122 20.0mm HSS-E PLAIN Shank 2 Flute Extra Long Series Slot Drill
| Cutter Diameter | 20 |
| Flute Length | 160 |
| Number of Flutes | 2 |
| Overall Length | 160 |
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Description
Meet the Dormer Pramet C122 20.0mm HSS-E plain shank two‑flute slot drill. Designed for shoulder milling and slot milling in free‑machining steel and copper alloys, it delivers dependable performance with extended reach for deep slots and pockets.
- Diameter: 20 mm
- Flutes: 2‑flute design for efficient cutting and chip evacuation
- Length of cut: 70 mm
- Overall length: 160 mm
- Reach with neck relief: 85.5 mm
- Shank: 20 mm plain shank
- Material: HSS‑E cobalt‑based for enhanced hardness and wear resistance
- Finish: Bright finish for smooth cutting and reliable performance
- Helix angle: 30°
- Rake angle: 12°
- Applications: Shoulder milling and slot milling in free machining steel and copper/copper alloys
- Standard: Dormer standard (DORMER)
This long‑series end mill is built to tackle deep slots with minimal deflection, thanks to its generous reach and rigid 20 mm shank. The 30° helix and 12° rake support efficient material removal while helping to maintain a clean shoulder and slot finish. The cobalt‑based HSS‑E composition stands up to heat and wear, extending tool life in demanding free machining steels and copper alloys. A bright finish reduces built‑up edge and aids in predictable cutting performance across multiple passes, making it a reliable choice for precision slot and shoulder milling projects.
Part Numbers
- Protool Part Number
- DOR-C12220.0
- 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 C122 HSS-E PLAIN Shank 2 Flute Extra Long Series Slot Drills
View full collection →You are viewing DOR-C12220.0. 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-C1225.0 | 5 | 65 | 2 | 65 | 5 | £26.05 | 2 days | |
| DOR-C1226.0 | 6 | 75 | 2 | 75 | 6 | £26.20 | 2 days | |
| DOR-C1227.0 | 7 | 85 | 2 | 85 | 8 | £37.00 | 2 days | |
| DOR-C1228.0 | 8 | 85 | 2 | 85 | 8 | £33.20 | 2 days | |
| DOR-C12210.0 | 10 | 95 | 2 | 95 | 10 | £36.46 | 2 days | |
| DOR-C12212.0 | 12 | 110 | 2 | 110 | 12 | £43.00 | 2 days | |
| DOR-C12214.0 | 14 | 125 | 2 | 125 | 12 | £53.73 | 2 days | |
| DOR-C12216.0 | 16 | 140 | 2 | 140 | 16 | £64.45 | 2 days | |
| DOR-C12218.0 | 18 | 150 | 2 | 150 | 16 | £73.20 | 2 days | |
| DOR-C12220.0 Viewing | 20 | 160 | 2 | 160 | 20 | £85.62 | 2 days | |
| DOR-C12222.0 | 22 | 170 | 2 | 170 | 20 | £110.46 | 2 days |
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