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Dormer Pramet C346 20.0mm HSS-E Flatted Shank 3 Flute Long Series Slot Drill DIN 844 L
| Cutter Diameter | 20 |
| Flute Length | 141 |
| Number of Flutes | 3 |
| Overall Length | 141 |
| Shank Diameter | 20 |
Learn more about Klarna
Durable long-series slot drill from Dormer Pramet, engineered for shoulder milling and slot milling in free-machining steel and copper alloys. With a 20 mm diameter and extended reach, this tool delivers reliable performance in deep pockets and tight spaces.
- Diameter: 20.0 mm
- Length of Cut: 75 mm
- Overall Length: 141 mm
- Reach / Neck Relief: 90.5 mm
- Shank: Weldon 20 mm
- Material: Cobalt-based HSS-E
- Finish: Bright finish
- Flutes: 3
- Helix Angle: 30°
- Rake Angle: 12°
- Standard: DIN 844 L
- Applications: Shoulder milling and slot milling
- Material Compatibility: Free machining steel and copper or copper alloys
This tool is built for precision and durability in demanding metals. The cobalt-based HSS-E construction provides improved wear resistance and heat tolerance, helping maintain sharpness and consistent hole geometry across long cutting lengths. The 3-flute design enhances chip evacuation and stability in deep slots, while the 30° helix and 12° rake optimize cutting action and reduce built-up edge. A Weldon 20 mm shank ensures solid clamping and minimizes runout, making it a dependable choice for repeatable production work in DIN 844 L-compatible setups.
| Cutter Diameter | 20 |
| Flute Length | 141 |
| Number of Flutes | 3 |
| Overall Length | 141 |
| Shank Diameter | 20 |
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 C346 HSS-E Flatted Shank 3 Flute Long Series Slot Drills DIN 844 L
View full collection →You are viewing DOR-C34620.0. 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-C3463.0 | 3 | 56 | 3 | 56 | 6 | £25.63 | 2 days | |
| DOR-C3464.0 | 4 | 63 | 3 | 63 | 6 | £25.72 | 2 days | |
| DOR-C3465.0 | 5 | 68 | 3 | 68 | 6 | £25.40 | 2 days | |
| DOR-C3466.0 | 6 | 68 | 3 | 68 | 6 | £25.58 | 2 days | |
| DOR-C3467.0 | 7 | 80 | 3 | 80 | 10 | £36.15 | 2 days | |
| DOR-C3468.0 | 8 | 88 | 3 | 88 | 10 | £32.45 | 2 days | |
| DOR-C3469.0 | 9 | 88 | 3 | 88 | 10 | £39.41 | 2 days | |
| DOR-C34610.0 | 10 | 95 | 3 | 95 | 10 | £35.55 | 2 days | |
| DOR-C34611.0 | 11 | 102 | 3 | 102 | 12 | £46.60 | 2 days | |
| DOR-C34612.0 | 12 | 110 | 3 | 110 | 12 | £41.97 | 2 days | |
| DOR-C34613.0 | 13 | 110 | 3 | 110 | 12 | £55.95 | 2 days | |
| DOR-C34615.0 | 15 | 110 | 3 | 110 | 12 | £62.43 | 2 days | |
| DOR-C34616.0 | 16 | 123 | 3 | 123 | 16 | £62.94 | 2 days | |
| DOR-C34620.0 Viewing | 20 | 141 | 3 | 141 | 20 | £83.66 | 2 days |
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