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Dormer Pramet C135 12.0mm HSS-E Flatted Shank 2 Flute Standard Length Slot Drill
| Cutter Diameter | 12 |
| Flute Length | 110 |
| Number of Flutes | 2 |
| Overall Length | 110 |
| Shank Diameter | 12 |
Learn more about Klarna
Durable and precise, the Dormer Pramet C135 12.0mm HSS-E slot drill is designed for reliable slot milling in free‑machining steel and copper alloys. Built with a Weldon 12 mm shank and cobalt-based HSS‑E, it delivers consistent cuts in demanding workshop environments.
- Diameter: 12.0 mm
- Flutes: 2 flutes
- Length of cut: 26 mm
- Overall length: 110 mm
- Reach with neck relief: 64.5 mm
- Shank: Weldon 12 mm
- Material: HSS‑E cobalt-based (cobalt enriched high-speed steel)
- Finish: Bright finish
- Helix angle: 30°
- Rake angle: 12°
- Primary use: Slot milling in free‑machining steel and copper/copper alloys
This slot drill excels at creating clean, accurate slots with stable geometry. The 30° helix supports smooth chip evacuation and steady cutting action, while the 12° rake helps align the cutting edge for efficient material removal. The Weldon shank ensures secure seating in collets or endmill holders, reducing the risk of slip during deep slots. With its cobalt‑based HSS‑E composition, the tool resists wear in tougher materials, extending life for busy production runs. The long reach and neck relief enable deeper slotting without sacrificing rigidity, making it a reliable choice for both maintenance and fabrication workflows.
| Cutter Diameter | 12 |
| Flute Length | 110 |
| Number of Flutes | 2 |
| Overall Length | 110 |
| Shank Diameter | 12 |
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 C135 HSS-E Flatted Shank 2 Flute Standard Length Slot Drills
View full collection →You are viewing DOR-C13512.0. 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-C1352.0 | 2 | 54 | 2 | 54 | 6 | £27.79 | 2 days | |
| DOR-C1353.0 | 3 | 56 | 2 | 56 | 6 | £26.28 | 2 days | |
| DOR-C1354.0 | 4 | 63 | 2 | 63 | 6 | £26.34 | 2 days | |
| DOR-C1355.0 | 5 | 68 | 2 | 68 | 6 | £26.05 | 2 days | |
| DOR-C1356.0 | 6 | 68 | 2 | 68 | 6 | £26.20 | 2 days | |
| DOR-C1358.0 | 8 | 88 | 2 | 88 | 10 | £33.20 | 2 days | |
| DOR-C13510.0 | 10 | 95 | 2 | 95 | 10 | £36.46 | 2 days | |
| DOR-C13512.0 Viewing | 12 | 110 | 2 | 110 | 12 | £43.00 | 2 days | |
| DOR-C13514.0 | 14 | 110 | 2 | 110 | 12 | £53.73 | 2 days | |
| DOR-C13516.0 | 16 | 123 | 2 | 123 | 16 | £64.45 | 2 days | |
| DOR-C13518.0 | 18 | 123 | 2 | 123 | 16 | £73.20 | 2 days | |
| DOR-C13520.0 | 20 | 141 | 2 | 141 | 20 | £85.62 | 2 days |
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