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Dormer Pramet A978 3.00 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK EXTRA LONG SERIES (3) DRILL DIN 1869 / 3
| Type | Extra Long Series |
| Drill Diameter | 3.00 |
| Flute Length | 160 |
| Overall Length | 240 |
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Description
Meet the Dormer Pramet A978 3.00 mm HSS-E High Performance Multi-Application Straight Shank Extra Long Drill (DIN 1869). Crafted for precision and reach, this compact yet robust drill is designed to excel where depth and accuracy matter, delivering consistent results across a range of metals.
- 130° point for self-centering entry: The geometry guides the drill tip into the workpiece, reducing wandering and the push force required to start cutting, which translates to cleaner starts and improved control.
- Bright finish for reduced sticking: A smooth, bright surface minimizes material buildup on the cutting edge, helping to prevent chip welding and extend edge life during continuous drilling.
- Parabolic flute design for extra-deep holes: The specialized flute geometry efficiently evacuates chips, enabling deep holes to be drilled in a single pass with steady diameter and less clogging.
- Premium HSS-E material: Built for longevity and versatile performance, this drill handles steel, aluminum, and stainless steel with reliable wear resistance and a hard-wearing edge.
- Extra-long length: Specifically engineered for deep-hole applications and applications where reach is critical, reducing the need to switch tools or repeatedly retracting for clearance.
- Straight shank, DIN 1869: Compatible with a wide range of chucks and holders, ensuring dependable mounting and consistent runout for precise drilling.
This drill is ideal for engineers, fabricators, and machinists tackling through-holes and blind holes in steel, stainless steel, and non-ferrous metals where depth and precision are essential. Use it for fixture work, toolmaking, automotive components, or any project that requires a long-reach solution without sacrificing accuracy.
Practical usage tips
- Choose a conservative spindle speed and steady feed when starting; increase gradually as you observe clean cutting and chip clearance.
- Apply light cutting fluid or lubrication to minimize heat buildup and extend tool life, especially in stainless steel or aluminum.
- Pre-punch or pilot hole for challenging materials to improve centering and reduce bit deflection.
- Periodically retract the drill to clear chips when drilling very deep holes, ensuring a consistent hole diameter and surface finish.
Technical snapshot
- Diameter: 3.00 mm
- Point angle: 130 degrees
- Flute type: Parabolic
- Material: HSS-E (high-performance)
- Length: Extra long
- Shank: Straight
- Standards: DIN 1869
Part Numbers
- Protool Part Number
- DOR-A9783.0
- Brand
- Dormer Pramet
- Category
- Drill
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 A978 HSS-E HIGH PERF MULT-APP STRAIGHT SHANK EXTRA LONG SERIES (3) DRILLS DIN 1869 / 3
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| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| DOR-A9783.0 Viewing | 3.00 | 160 | 240 | 3 | £24.97 | 2 days | |
| DOR-A9783.5X265 | 3.50 | 180 | 265 | 3.5 | £29.21 | 2 days | |
| DOR-A9784.0X280 | 4.00 | 190 | 280 | 4 | £30.38 | 2 days | |
| DOR-A9784.5X295 | 4.50 | 200 | 295 | 4.5 | £36.07 | 2 days | |
| DOR-A9785.0X315 | 5.00 | 210 | 315 | 5 | £38.68 | 2 days | |
| DOR-A9786.0X330 | 6.00 | 225 | 330 | 6 | £48.52 | 2 days | |
| DOR-A9781/4 | 1/4 | 235 | 350 | 6.35 | £55.33 | 2 days | |
| DOR-A9786.5X350 | 6.50 | 235 | 350 | 6.5 | £62.24 | 2 days | |
| DOR-A9787.0X370 | 7.00 | 250 | 370 | 7 | £66.50 | 2 days | |
| DOR-A9788.0X390 | 8.00 | 265 | 390 | 8 | £81.40 | 2 days | |
| DOR-A9788.5X390 | 8.50 | 265 | 390 | 8.5 | £93.10 | 2 days | |
| DOR-A9789.0X410 | 9.00 | 280 | 410 | 9 | £100.02 | 2 days | |
| DOR-A9789.5X410 | 9.50 | 280 | 410 | 9.5 | £115.44 | 2 days | |
| DOR-A97810.0X430 | 10.00 | 295 | 430 | 10 | £118.64 | 2 days |
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