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Dormer Pramet A940 3.50 mm HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILL DIN/ANSI
SKU:DOR-A9403.5
Meet a precision-driven drill designed for serious metalworking: the Dormer Pramet A940 3.50 mm HSS-E High Performance Multi-Apply Straight Shank Long Series Drill. Built for DIN/ANSI compatibilit...
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Material Compatibility
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Specification
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| Type | Long Series |
| Drill Diameter | 3.50 |
| Flute Length | 73 |
| Overall Length | 112 |
| Shank Diameter | 3.5 |
| Substrate | HSS-E |
£12.95
Prices shown ex. VAT
2 days estimated lead time
— subject to availability
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Free delivery over £50 ex VAT
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30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Learn more about Klarna
Meet a precision-driven drill designed for serious metalworking: the Dormer Pramet A940 3.50 mm HSS-E High Performance Multi-Apply Straight Shank Long Series Drill. Built for DIN/ANSI compatibility, this 3.50 mm diameter bit delivers reliable performance across a range of materials, making it a staple in professional shops and fabrication workshops alike.
- 130-degree point for self-centering — minimizes wandering on initial contact and reduces push force, helping you start holes cleanly in challenging metals.
- Bright finish — resists built-up material on the cutting edge, promoting smoother penetration and easier chip evacuation.
- Parabolic flute design — engineered to drill extra-deep holes in a single pass, with efficient chip clearance to maintain hole quality and extend tool life.
- Premium HSS-E material — high-speed steel with enhanced toughness and red-hardness, suitable for drilling steel, aluminium, stainless steel, and other alloys without frequent tool changes.
- Long series, straight shank — optimized for extended reach and stable performance in machines and chucks that require a robust, straight shank for precise drilling.
- High performance drilling — designed to deliver accurate hole sizes with tight tolerances (H10) even at higher speeds and feeds, reducing rework and improving throughput.
Use cases span critical fabrication tasks—from precision fasteners and hardened components to aluminum housings and stainless assemblies. The A940 is ideal for engineers and machinists who need consistent hole quality in a variety of materials without switching tools or compromising accuracy.
Compared to standard HSS drills, this Dormer Pramet design leverages advanced geometry and a tougher substrate to maintain straightness and dimensional control at higher cutting rates. For best results, pair with appropriate coolant and follow material-specific speeds and feeds to maximize life and performance.
Diameter: 3.50 mm | Style: Multi-Application | Shank: Straight | Series: Long
| Type | Long Series |
| Drill Diameter | 3.50 |
| Flute Length | 73 |
| Overall Length | 112 |
| Shank Diameter | 3.5 |
| Substrate | HSS-E |
| Coated | No |
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.
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Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Full Range: Dormer Pramet A940 HSS-E HIGH PERF MULT-APP STRAIGHT SHANK LONG SERIES DRILLS DIN/ANSI
View full collection →You are viewing DOR-A9403.5. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| DOR-A9401.0 | 1.00 | 33 | 56 | 1 | £15.29 | 2 days | |
| DOR-A9401.1 | 1.10 | 37 | 60 | 1.1 | £14.64 | 2 days | |
| DOR-A9403/64 | 3/64 | 29 | 57 | 1.19 | £15.46 | 2 days | |
| DOR-A9401.2 | 1.20 | 41 | 65 | 1.2 | £14.93 | 2 days | |
| DOR-A9401.3 | 1.30 | 41 | 65 | 1.3 | £12.08 | 2 days | |
| DOR-A9401.4 | 1.40 | 45 | 70 | 1.4 | £13.62 | 2 days | |
| DOR-A9401.5 | 1.50 | 45 | 70 | 1.5 | £13.54 | 2 days | |
| DOR-A9401/16 | 1/16 | 44 | 76 | 1.59 | £13.06 | 2 days | |
| DOR-A9401.6 | 1.60 | 50 | 76 | 1.6 | £13.30 | 2 days | |
| DOR-A9401.7 | 1.70 | 50 | 76 | 1.7 | £11.89 | 2 days | |
| DOR-A9401.8 | 1.80 | 53 | 80 | 1.8 | £12.48 | 2 days | |
| DOR-A9401.9 | 1.90 | 53 | 80 | 1.9 | £13.54 | 2 days | |
| DOR-A9405/64 | 5/64 | 51 | 95 | 1.98 | £13.54 | 2 days | |
| DOR-A9402.0 | 2.00 | 56 | 85 | 2 | £10.64 | 2 days | |
| DOR-A9402.1 | 2.10 | 56 | 85 | 2.1 | £11.38 | 2 days | |
| DOR-A9402.2 | 2.20 | 59 | 90 | 2.2 | £12.13 | 2 days | |
| DOR-A9402.3 | 2.30 | 59 | 90 | 2.3 | £12.48 | 2 days | |
| DOR-A9403/32 | 3/32 | 57 | 108 | 2.38 | £12.48 | 2 days | |
| DOR-A9402.4 | 2.40 | 62 | 95 | 2.4 | £15.28 | 2 days | |
| DOR-A9402.5 | 2.50 | 62 | 95 | 2.5 | £11.04 | 2 days | |
| DOR-A9402.6 | 2.60 | 62 | 95 | 2.6 | £15.28 | 2 days | |
| DOR-A9402.7 | 2.70 | 66 | 100 | 2.7 | £13.73 | 2 days | |
| DOR-A9407/64 | 7/64 | 64 | 117 | 2.78 | £13.73 | 2 days | |
| DOR-A9402.8 | 2.80 | 66 | 100 | 2.8 | £12.34 | 2 days | |
| DOR-A9402.9 | 2.90 | 66 | 100 | 2.9 | £13.54 | 2 days | |
| DOR-A9403.0 | 3.00 | 66 | 100 | 3 | £11.04 | 2 days | |
| DOR-A9403.1 | 3.10 | 69 | 106 | 3.1 | £13.06 | 2 days | |
| DOR-A9401/8 | 1/8 | 70 | 130 | 3.18 | £12.34 | 2 days | |
| DOR-A9403.2 | 3.20 | 69 | 106 | 3.2 | £12.34 | 2 days | |
| DOR-A9403.3 | 3.30 | 69 | 106 | 3.3 | £13.30 | 2 days | |
| DOR-A9403.4 | 3.40 | 73 | 112 | 3.4 | £15.61 | 2 days | |
| DOR-A9403.5 Viewing | 3.50 | 73 | 112 | 3.5 | £12.95 | 2 days | |
| DOR-A9409/64 | 9/64 | 76 | 137 | 3.57 | £12.80 | 2 days | |
| DOR-A9403.6 | 3.60 | 73 | 112 | 3.6 | £12.80 | 2 days | |
| DOR-A9403.7 | 3.70 | 73 | 112 | 3.7 | £15.40 | 2 days | |
| DOR-A9403.8 | 3.80 | 78 | 119 | 3.8 | £14.23 | 2 days | |
| DOR-A9403.9 | 3.90 | 78 | 119 | 3.9 | £13.12 | 2 days | |
| DOR-A9405/32 | 5/32 | 76 | 137 | 3.97 | £13.36 | 2 days | |
| DOR-A9404.0 | 4.00 | 78 | 119 | 4 | £13.36 | 2 days | |
| DOR-A9404.1 | 4.10 | 78 | 119 | 4.1 | £17.62 | 2 days | |
| DOR-A9404.2 | 4.20 | 78 | 119 | 4.2 | £15.29 | 2 days | |
| DOR-A9404.3 | 4.30 | 82 | 126 | 4.3 | £16.46 | 2 days | |
| DOR-A9404.4 | 4.40 | 82 | 126 | 4.4 | £17.16 | 2 days | |
| DOR-A9404.5 | 4.50 | 82 | 126 | 4.5 | £15.93 | 2 days | |
| DOR-A9404.6 | 4.60 | 82 | 126 | 4.6 | £17.42 | 2 days | |
| DOR-A9403/16 | 3/16 | 86 | 146 | 4.76 | £19.11 | 2 days | |
| DOR-A9404.8 | 4.80 | 87 | 132 | 4.8 | £19.11 | 2 days | |
| DOR-A9404.9 | 4.90 | 87 | 132 | 4.9 | £19.15 | 2 days | |
| DOR-A9405.0 | 5.00 | 87 | 132 | 5 | £17.16 | 2 days | |
| DOR-A9405.1 | 5.10 | 87 | 132 | 5.1 | £21.55 | 2 days | |
| DOR-A9405.2 | 5.20 | 87 | 132 | 5.2 | £20.25 | 2 days | |
| DOR-A9405.3 | 5.30 | 87 | 132 | 5.3 | £21.98 | 2 days | |
| DOR-A9405.4 | 5.40 | 91 | 139 | 5.4 | £18.47 | 2 days | |
| DOR-A9405.5 | 5.50 | 91 | 139 | 5.5 | £21.71 | 2 days | |
| DOR-A9405.8 | 5.80 | 91 | 139 | 5.8 | £21.71 | 2 days | |
| DOR-A9405.9 | 5.90 | 91 | 139 | 5.9 | £24.37 | 2 days | |
| DOR-A9406.0 | 6.00 | 91 | 139 | 6 | £21.55 | 2 days | |
| DOR-A9406.1 | 6.10 | 97 | 148 | 6.1 | £25.70 | 2 days | |
| DOR-A9406.2 | 6.20 | 97 | 148 | 6.2 | £25.40 | 2 days | |
| DOR-A9401/4 | 1/4 | 95 | 156 | 6.35 | £24.37 | 2 days | |
| DOR-A9406.4 | 6.40 | 97 | 148 | 6.4 | £30.38 | 2 days | |
| DOR-A9406.5 | 6.50 | 97 | 148 | 6.5 | £27.56 | 2 days | |
| DOR-A9406.6 | 6.60 | 97 | 148 | 6.6 | £26.31 | 2 days | |
| DOR-A9406.7 | 6.70 | 97 | 148 | 6.7 | £31.18 | 2 days | |
| DOR-A94017/64 | 17/64 | 98 | 159 | 6.75 | £26.39 | 2 days | |
| DOR-A9406.8 | 6.80 | 102 | 156 | 6.8 | £30.49 | 2 days | |
| DOR-A9406.9 | 6.90 | 102 | 156 | 6.9 | £33.04 | 2 days | |
| DOR-A9407.0 | 7.00 | 102 | 156 | 7 | £29.11 | 2 days | |
| DOR-A9407.2 | 7.20 | 102 | 156 | 7.2 | £43.09 | 2 days | |
| DOR-A9407.3 | 7.30 | 102 | 156 | 7.3 | £44.48 | 2 days | |
| DOR-A9407.5 | 7.50 | 102 | 156 | 7.5 | £35.81 | 2 days | |
| DOR-A9407.8 | 7.80 | 109 | 165 | 7.8 | £42.51 | 2 days | |
| DOR-A9405/16 | 5/16 | 102 | 162 | 7.94 | £34.96 | 2 days | |
| DOR-A9408.0 | 8.00 | 109 | 165 | 8 | £35.96 | 2 days | |
| DOR-A9408.2 | 8.20 | 109 | 165 | 8.2 | £50.49 | 2 days | |
| DOR-A9408.3 | 8.30 | 109 | 165 | 8.3 | £51.35 | 2 days | |
| DOR-A9408.5 | 8.50 | 109 | 165 | 8.5 | £41.02 | 2 days | |
| DOR-A9408.6 | 8.60 | 115 | 175 | 8.6 | £62.78 | 2 days | |
| DOR-A9408.7 | 8.70 | 115 | 175 | 8.7 | £60.12 | 2 days | |
| DOR-A94011/32 | 11/32 | 105 | 165 | 8.73 | £43.79 | 2 days | |
| DOR-A9409.0 | 9.00 | 115 | 175 | 9 | £44.22 | 2 days | |
| DOR-A9409.5 | 9.50 | 115 | 175 | 9.5 | £50.75 | 2 days | |
| DOR-A9409.8 | 9.80 | 121 | 184 | 9.8 | £66.50 | 2 days | |
| DOR-A94010.0 | 10.00 | 121 | 184 | 10 | £52.30 | 2 days | |
| DOR-A94010.2 | 10.20 | 121 | 184 | 10.2 | £73.42 | 2 days | |
| DOR-A94010.3 | 10.30 | 121 | 184 | 10.3 | £91.50 | 2 days | |
| DOR-A94013/32 | 13/32 | 111 | 178 | 10.32 | £61.18 | 2 days | |
| DOR-A94010.5 | 10.50 | 121 | 184 | 10.5 | £64.37 | 2 days | |
| DOR-A94027/64 | 27/64 | 117 | 184 | 10.72 | £106.40 | 2 days | |
| DOR-A94011.0 | 11.00 | 128 | 195 | 11 | £70.76 | 2 days | |
| DOR-A9407/16 | 7/16 | 117 | 184 | 11.11 | £72.35 | 2 days | |
| DOR-A94011.5 | 11.50 | 128 | 195 | 11.5 | £76.61 | 2 days | |
| DOR-A94029/64 | 29/64 | 121 | 190 | 11.51 | £125.55 | 2 days | |
| DOR-A94011.8 | 11.80 | 128 | 195 | 11.8 | £104.27 | 2 days | |
| DOR-A94012.0 | 12.00 | 134 | 205 | 12 | £83.52 | 2 days | |
| DOR-A94012.2 | 12.20 | 134 | 205 | 12.2 | £112.78 | 2 days | |
| DOR-A94031/64 | 31/64 | 121 | 197 | 12.3 | £147.36 | 2 days | |
| DOR-A94012.5 | 12.50 | 134 | 205 | 12.5 | £91.50 | 2 days | |
| DOR-A94013.0 | 13.00 | 134 | 205 | 13 | £95.23 | 2 days | |
| DOR-A94017/32 | 17/32 | 121 | 203 | 13.49 | £127.68 | 2 days | |
| DOR-A94014.0 | 14.00 | 140 | 214 | 14 | £110.66 | 2 days | |
| DOR-A9409/16 | 9/16 | 124 | 210 | 14.29 | £142.58 | 2 days | |
| DOR-A94014.5 | 14.50 | 144 | 220 | 14.5 | £145.77 | 2 days | |
| DOR-A94015.0 | 15.00 | 144 | 220 | 15 | £133.53 | 2 days | |
| DOR-A94015.5 | 15.50 | 149 | 227 | 15.5 | £216.52 | 2 days | |
| DOR-A94016.0 | 16.00 | 149 | 227 | 16 | £159.07 | 2 days | |
| DOR-A94021/32 | 21/32 | 130 | 229 | 16.67 | £244.19 | 2 days | |
| DOR-A94017.0 | 17.00 | 154 | 235 | 17 | £193.12 | 2 days | |
| DOR-A94011/16 | 11/16 | 137 | 235 | 17.46 | £230.36 | 2 days | |
| DOR-A94019.0 | 19.00 | 162 | 247 | 19 | £243.66 | 2 days |
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