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Dormer Pramet A110 8.25 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340
SKU:DOR-A1108.25
Meet the Dormer Pramet A110 8.25 mm HSS straight shank long series drill, DIN 340—a purpose-built solution for deep drilling in metal. This is not a one-trick bit; it’s a reliable workhorse desig...
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Material Compatibility
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Specification
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| Type | Long Series |
| Drill Diameter | 8.25 |
| Flute Length | 109 |
| Overall Length | 165 |
| Shank Diameter | 8.25 |
| Substrate | HSS |
£14.03
Prices shown ex. VAT
2 days estimated lead time
— subject to availability
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Meet the Dormer Pramet A110 8.25 mm HSS straight shank long series drill, DIN 340—a purpose-built solution for deep drilling in metal. This is not a one-trick bit; it’s a reliable workhorse designed to handle demanding holes with consistent accuracy in a range of materials.
Key features
- 118-degree conventional point that creates a strong, easily re-sharpened tip for precise starts and reduced wandering.
- Steam oxide finish minimizes material sticking to the cutting edge, promoting smoother chip flow and steadier performance across passes.
- Long length design delivers increased reach for deep holes and applications where extended depth is essential.
- Premium HSS material delivers dependable drilling across steel, aluminium, and stainless steel, making it a versatile choice for mixed-material projects.
- Straight shank design ensures broad compatibility with common drill chucks and machine setups, from handheld drills to CNC and milling machines.
- DIN 340 standard compatibility guarantees reliable interchangeability within standardized tooling systems.
Applications and use cases
Ideal for metal fabrication, automotive maintenance, plumbing, and industrial assembly where deep, clean holes are required. The 8.25 mm diameter is well-suited for clearance and through-holes, bolt holes, or passes through multi-layer components, while the long series length helps you reach through obstructing material or stacked assemblies.
Why this drill stands out
- Designed for real-world drilling tasks—start holes confidently, maintain edge geometry, and reduce downtime from frequent tool changes.
- Re-sharpenable tip extends tool life in busy shops, helping keep costs down without sacrificing performance.
- Steam oxide finish supports stable cutting action and consistent hole quality across longer drilling sessions.
Practical tips for best results
Match speed and feed to the material type, use a light cutting fluid for metals, and avoid running the drill dry to prevent edge wear. For deep holes, employ gentle pecking cycles to clear chips and preserve hole diameter accuracy. This drill is ready for both handheld use and machine-based drilling, so you can choose the approach that fits your workflow.
| Type | Long Series |
| Drill Diameter | 8.25 |
| Flute Length | 109 |
| Overall Length | 165 |
| Shank Diameter | 8.25 |
| Substrate | HSS |
| Coated | Steam Tempered |
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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Buying experience
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 A110 HSS ST STRAIGHT SHANK LONG SERIES DRILLS DIN 340
View full collection →You are viewing DOR-A1108.25. Click any other SKU to view its full details.
| Product SKU | Drill Diameter | Flute Length | Overall Length | Shank Diameter | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| DOR-A110.5 | 0.50 | 12 | 32 | 0.5 | £9.76 | 2 days | |
| DOR-A110.6 | 0.60 | 15 | 35 | 0.6 | £8.60 | 2 days | |
| DOR-A110.7 | 0.70 | 21 | 42 | 0.7 | £7.84 | 2 days | |
| DOR-A1101/32 | 1/32 | 25 | 46 | 0.79 | £3.89 | 2 days | |
| DOR-A110.8 | 0.80 | 25 | 46 | 0.8 | £7.11 | 2 days | |
| DOR-A110.9 | 0.90 | 29 | 51 | 0.9 | £6.46 | 2 days | |
| DOR-A1101.0 | 1.00 | 33 | 56 | 1 | £3.86 | 2 days | |
| DOR-A1101.1 | 1.10 | 37 | 60 | 1.1 | £3.71 | 2 days | |
| DOR-A1101.2 | 1.20 | 41 | 65 | 1.2 | £3.77 | 2 days | |
| DOR-A1101.3 | 1.30 | 41 | 65 | 1.3 | £3.06 | 2 days | |
| DOR-A1101.4 | 1.40 | 45 | 70 | 1.4 | £3.44 | 2 days | |
| DOR-A1101.5 | 1.50 | 45 | 70 | 1.5 | £3.42 | 2 days | |
| DOR-A1101/16 | 1/16 | 50 | 76 | 1.59 | £3.30 | 2 days | |
| DOR-A1101.6 | 1.60 | 50 | 76 | 1.6 | £3.36 | 2 days | |
| DOR-A1101.7 | 1.70 | 50 | 76 | 1.7 | £2.99 | 2 days | |
| DOR-A1101.75 | 1.75 | 53 | 80 | 1.75 | £4.53 | 2 days | |
| DOR-A1101.8 | 1.80 | 53 | 80 | 1.8 | £3.18 | 2 days | |
| DOR-A1101.9 | 1.90 | 53 | 80 | 1.9 | £3.42 | 2 days | |
| DOR-A1105/64 | 5/64 | 56 | 85 | 1.98 | £3.42 | 2 days | |
| DOR-A1102.0 | 2.00 | 56 | 85 | 2 | £2.69 | 2 days | |
| DOR-A1102.05 | 2.05 | 56 | 85 | 2.05 | £4.33 | 2 days | |
| DOR-A1102.1 | 2.10 | 56 | 85 | 2.1 | £2.89 | 2 days | |
| DOR-A1102.2 | 2.20 | 59 | 90 | 2.2 | £3.07 | 2 days | |
| DOR-A1102.25 | 2.25 | 59 | 90 | 2.25 | £4.41 | 2 days | |
| DOR-A1102.3 | 2.30 | 59 | 90 | 2.3 | £3.18 | 2 days | |
| DOR-A1103/32 | 3/32 | 62 | 95 | 2.38 | £3.18 | 2 days | |
| DOR-A1102.4 | 2.40 | 62 | 95 | 2.4 | £3.86 | 2 days | |
| DOR-A1102.5 | 2.50 | 62 | 95 | 2.5 | £2.78 | 2 days | |
| DOR-A1102.6 | 2.60 | 62 | 95 | 2.6 | £3.86 | 2 days | |
| DOR-A1102.7 | 2.70 | 66 | 100 | 2.7 | £3.47 | 2 days | |
| DOR-A1107/64 | 7/64 | 66 | 100 | 2.78 | £3.47 | 2 days | |
| DOR-A1102.8 | 2.80 | 66 | 100 | 2.8 | £3.13 | 2 days | |
| DOR-A1102.9 | 2.90 | 66 | 100 | 2.9 | £3.42 | 2 days | |
| DOR-A1103.0 | 3.00 | 66 | 100 | 3 | £2.78 | 2 days | |
| DOR-A1103.1 | 3.10 | 69 | 106 | 3.1 | £3.30 | 2 days | |
| DOR-A1101/8 | 1/8 | 69 | 106 | 3.18 | £3.13 | 2 days | |
| DOR-A1103.2 | 3.20 | 69 | 106 | 3.2 | £3.13 | 2 days | |
| DOR-A1103.25 | 3.25 | 69 | 106 | 3.25 | £4.83 | 2 days | |
| DOR-A1103.3 | 3.30 | 69 | 106 | 3.3 | £3.36 | 2 days | |
| DOR-A1103.4 | 3.40 | 73 | 112 | 3.4 | £3.97 | 2 days | |
| DOR-A1103.5 | 3.50 | 73 | 112 | 3.5 | £3.27 | 2 days | |
| DOR-A1109/64 | 9/64 | 73 | 112 | 3.57 | £3.24 | 2 days | |
| DOR-A1103.6 | 3.60 | 73 | 112 | 3.6 | £3.24 | 2 days | |
| DOR-A1103.7 | 3.70 | 73 | 112 | 3.7 | £3.89 | 2 days | |
| DOR-A1103.75 | 3.75 | 73 | 112 | 3.75 | £5.20 | 2 days | |
| DOR-A1103.8 | 3.80 | 78 | 119 | 3.8 | £3.62 | 2 days | |
| DOR-A1103.9 | 3.90 | 78 | 119 | 3.9 | £3.31 | 2 days | |
| DOR-A1105/32 | 5/32 | 78 | 119 | 3.97 | £3.37 | 2 days | |
| DOR-A1104.0 | 4.00 | 78 | 119 | 4 | £3.37 | 2 days | |
| DOR-A1104.1 | 4.10 | 78 | 119 | 4.1 | £4.47 | 2 days | |
| DOR-A1104.2 | 4.20 | 78 | 119 | 4.2 | £3.86 | 2 days | |
| DOR-A1104.25 | 4.25 | 78 | 119 | 4.25 | £6.64 | 2 days | |
| DOR-A1104.3 | 4.30 | 82 | 126 | 4.3 | £4.16 | 2 days | |
| DOR-A11011/64 | 11/64 | 82 | 126 | 4.37 | £4.10 | 2 days | |
| DOR-A1104.4 | 4.40 | 82 | 126 | 4.4 | £4.33 | 2 days | |
| DOR-A1104.5 | 4.50 | 82 | 126 | 4.5 | £4.04 | 2 days | |
| DOR-A1104.6 | 4.60 | 82 | 126 | 4.6 | £4.41 | 2 days | |
| DOR-A1104.7 | 4.70 | 82 | 126 | 4.7 | £4.70 | 2 days | |
| DOR-A1104.75 | 4.75 | 82 | 126 | 4.75 | £6.98 | 2 days | |
| DOR-A1103/16 | 3/16 | 87 | 132 | 4.76 | £4.83 | 2 days | |
| DOR-A1104.8 | 4.80 | 87 | 132 | 4.8 | £4.83 | 2 days | |
| DOR-A1104.9 | 4.90 | 87 | 132 | 4.9 | £4.86 | 2 days | |
| DOR-A1105.0 | 5.00 | 87 | 132 | 5 | £4.33 | 2 days | |
| DOR-A1105.1 | 5.10 | 87 | 132 | 5.1 | £5.46 | 2 days | |
| DOR-A11013/64 | 13/64 | 87 | 132 | 5.16 | £5.09 | 2 days | |
| DOR-A1105.2 | 5.20 | 87 | 132 | 5.2 | £5.14 | 2 days | |
| DOR-A1105.25 | 5.25 | 87 | 132 | 5.25 | £8.33 | 2 days | |
| DOR-A1105.3 | 5.30 | 87 | 132 | 5.3 | £5.56 | 2 days | |
| DOR-A1105.4 | 5.40 | 91 | 139 | 5.4 | £4.68 | 2 days | |
| DOR-A1105.5 | 5.50 | 91 | 139 | 5.5 | £5.50 | 2 days | |
| DOR-A1107/32 | 7/32 | 91 | 139 | 5.56 | £5.56 | 2 days | |
| DOR-A1105.6 | 5.60 | 91 | 139 | 5.6 | £5.96 | 2 days | |
| DOR-A1105.7 | 5.70 | 91 | 139 | 5.7 | £5.41 | 2 days | |
| DOR-A1105.75 | 5.75 | 91 | 139 | 5.75 | £8.76 | 2 days | |
| DOR-A1105.8 | 5.80 | 91 | 139 | 5.8 | £5.50 | 2 days | |
| DOR-A1105.9 | 5.90 | 91 | 139 | 5.9 | £6.16 | 2 days | |
| DOR-A11015/64 | 15/64 | 91 | 139 | 5.95 | £6.25 | 2 days | |
| DOR-A1106.0 | 6.00 | 91 | 139 | 6 | £5.46 | 2 days | |
| DOR-A1106.1 | 6.10 | 97 | 148 | 6.1 | £6.52 | 2 days | |
| DOR-A1106.2 | 6.20 | 97 | 148 | 6.2 | £6.43 | 2 days | |
| DOR-A1106.25 | 6.25 | 97 | 148 | 6.25 | £10.40 | 2 days | |
| DOR-A1106.3 | 6.30 | 97 | 148 | 6.3 | £6.46 | 2 days | |
| DOR-A1101/4 | 1/4 | 97 | 148 | 6.35 | £6.16 | 2 days | |
| DOR-A1106.4 | 6.40 | 97 | 148 | 6.4 | £7.69 | 2 days | |
| DOR-A1106.5 | 6.50 | 97 | 148 | 6.5 | £6.98 | 2 days | |
| DOR-A1106.6 | 6.60 | 97 | 148 | 6.6 | £6.66 | 2 days | |
| DOR-A1106.7 | 6.70 | 97 | 148 | 6.7 | £7.92 | 2 days | |
| DOR-A11017/64 | 17/64 | 102 | 156 | 6.75 | £6.69 | 2 days | |
| DOR-A1106.75 | 6.75 | 102 | 156 | 6.75 | £8.44 | 2 days | |
| DOR-A1106.8 | 6.80 | 102 | 156 | 6.8 | £7.71 | 2 days | |
| DOR-A1106.9 | 6.90 | 102 | 156 | 6.9 | £8.34 | 2 days | |
| DOR-A1107.0 | 7.00 | 102 | 156 | 7 | £7.37 | 2 days | |
| DOR-A1107.1 | 7.10 | 102 | 156 | 7.1 | £12.25 | 2 days | |
| DOR-A1109/32 | 9/32 | 102 | 156 | 7.14 | £8.01 | 2 days | |
| DOR-A1107.2 | 7.20 | 102 | 156 | 7.2 | £10.90 | 2 days | |
| DOR-A1107.25 | 7.25 | 102 | 156 | 7.25 | £10.40 | 2 days | |
| DOR-A1107.3 | 7.30 | 102 | 156 | 7.3 | £11.26 | 2 days | |
| DOR-A1107.4 | 7.40 | 102 | 156 | 7.4 | £12.66 | 2 days | |
| DOR-A1107.5 | 7.50 | 102 | 156 | 7.5 | £9.07 | 2 days | |
| DOR-A1107.6 | 7.60 | 109 | 165 | 7.6 | £13.30 | 2 days | |
| DOR-A1107.7 | 7.70 | 109 | 165 | 7.7 | £12.39 | 2 days | |
| DOR-A1107.75 | 7.75 | 109 | 165 | 7.75 | £11.13 | 2 days | |
| DOR-A1107.8 | 7.80 | 109 | 165 | 7.8 | £10.79 | 2 days | |
| DOR-A1107.9 | 7.90 | 109 | 165 | 7.9 | £10.08 | 2 days | |
| DOR-A1105/16 | 5/16 | 109 | 165 | 7.94 | £8.85 | 2 days | |
| DOR-A1108.0 | 8.00 | 109 | 165 | 8 | £9.12 | 2 days | |
| DOR-A1108.1 | 8.10 | 109 | 165 | 8.1 | £13.59 | 2 days | |
| DOR-A1108.2 | 8.20 | 109 | 165 | 8.2 | £12.77 | 2 days | |
| DOR-A1108.25 Viewing | 8.25 | 109 | 165 | 8.25 | £14.03 | 2 days | |
| DOR-A1108.3 | 8.30 | 109 | 165 | 8.3 | £12.98 | 2 days | |
| DOR-A1108.4 | 8.40 | 109 | 165 | 8.4 | £12.08 | 2 days | |
| DOR-A1108.5 | 8.50 | 109 | 165 | 8.5 | £10.40 | 2 days | |
| DOR-A1108.6 | 8.60 | 115 | 175 | 8.6 | £15.82 | 2 days | |
| DOR-A1108.7 | 8.70 | 115 | 175 | 8.7 | £15.17 | 2 days | |
| DOR-A11011/32 | 11/32 | 115 | 175 | 8.73 | £11.08 | 2 days | |
| DOR-A1108.75 | 8.75 | 115 | 175 | 8.75 | £18.65 | 2 days | |
| DOR-A1108.8 | 8.80 | 115 | 175 | 8.8 | £15.18 | 2 days | |
| DOR-A1109.0 | 9.00 | 115 | 175 | 9 | £11.20 | 2 days | |
| DOR-A1109.1 | 9.10 | 115 | 175 | 9.1 | £15.94 | 2 days | |
| DOR-A1109.2 | 9.20 | 115 | 175 | 9.2 | £17.69 | 2 days | |
| DOR-A1109.3 | 9.30 | 115 | 175 | 9.3 | £19.00 | 2 days | |
| DOR-A1109.5 | 9.50 | 115 | 175 | 9.5 | £12.86 | 2 days | |
| DOR-A1103/8 | 3/8 | 121 | 184 | 9.52 | £13.00 | 2 days | |
| DOR-A1109.6 | 9.60 | 121 | 184 | 9.6 | £18.92 | 2 days | |
| DOR-A1109.7 | 9.70 | 121 | 184 | 9.7 | £17.95 | 2 days | |
| DOR-A1109.8 | 9.80 | 121 | 184 | 9.8 | £16.83 | 2 days | |
| DOR-A1109.9 | 9.90 | 121 | 184 | 9.9 | £16.40 | 2 days | |
| DOR-A11010.0 | 10.00 | 121 | 184 | 10 | £13.25 | 2 days | |
| DOR-A11010.1 | 10.10 | 121 | 184 | 10.1 | £18.79 | 2 days | |
| DOR-A11010.2 | 10.20 | 121 | 184 | 10.2 | £18.59 | 2 days | |
| DOR-A11010.25 | 10.25 | 121 | 184 | 10.25 | £20.29 | 2 days | |
| DOR-A11010.3 | 10.30 | 121 | 184 | 10.3 | £23.12 | 2 days | |
| DOR-A11013/32 | 13/32 | 121 | 184 | 10.32 | £15.49 | 2 days | |
| DOR-A11010.5 | 10.50 | 121 | 184 | 10.5 | £16.32 | 2 days | |
| DOR-A11010.75 | 10.75 | 128 | 195 | 10.75 | £20.57 | 2 days | |
| DOR-A11010.8 | 10.80 | 128 | 195 | 10.8 | £19.79 | 2 days | |
| DOR-A11011.0 | 11.00 | 128 | 195 | 11 | £17.91 | 2 days | |
| DOR-A1107/16 | 7/16 | 128 | 195 | 11.11 | £18.27 | 2 days | |
| DOR-A11011.5 | 11.50 | 128 | 195 | 11.5 | £19.41 | 2 days | |
| DOR-A11011.75 | 11.75 | 128 | 195 | 11.75 | £25.17 | 2 days | |
| DOR-A11012.0 | 12.00 | 134 | 205 | 12 | £21.10 | 2 days | |
| DOR-A11012.1 | 12.10 | 134 | 205 | 12.1 | £27.31 | 2 days | |
| DOR-A11012.25 | 12.25 | 134 | 205 | 12.25 | £30.37 | 2 days | |
| DOR-A11012.5 | 12.50 | 134 | 205 | 12.5 | £23.21 | 2 days | |
| DOR-A1101/2 | 1/2 | 134 | 205 | 12.7 | £23.85 | 2 days | |
| DOR-A11013.0 | 13.00 | 134 | 205 | 13 | £24.03 | 2 days | |
| DOR-A11017/32 | 17/32 | 140 | 214 | 13.49 | £32.33 | 2 days | |
| DOR-A11013.5 | 13.50 | 140 | 214 | 13.5 | £33.29 | 2 days | |
| DOR-A11014.0 | 14.00 | 140 | 214 | 14 | £27.95 | 2 days | |
| DOR-A1109/16 | 9/16 | 144 | 220 | 14.29 | £36.02 | 2 days | |
| DOR-A11014.5 | 14.50 | 144 | 220 | 14.5 | £36.89 | 2 days | |
| DOR-A11015.0 | 15.00 | 144 | 220 | 15 | £33.74 | 2 days | |
| DOR-A11015.5 | 15.50 | 149 | 227 | 15.5 | £54.72 | 2 days | |
| DOR-A1105/8 | 5/8 | 149 | 227 | 15.88 | £46.97 | 2 days | |
| DOR-A11016.0 | 16.00 | 149 | 227 | 16 | £40.31 | 2 days | |
| DOR-A11016.5 | 16.50 | 154 | 235 | 16.5 | £58.82 | 2 days | |
| DOR-A11017.0 | 17.00 | 154 | 235 | 17 | £48.79 | 2 days | |
| DOR-A11017.5 | 17.50 | 158 | 241 | 17.5 | £67.49 | 2 days | |
| DOR-A11018.0 | 18.00 | 158 | 241 | 18 | £50.62 | 2 days | |
| DOR-A11018.5 | 18.50 | 162 | 247 | 18.5 | £84.82 | 2 days | |
| DOR-A11019.0 | 19.00 | 162 | 247 | 19 | £61.56 | 2 days | |
| DOR-A1103/4 | 3/4 | 166 | 254 | 19.05 | £71.14 | 2 days | |
| DOR-A11019.5 | 19.50 | 166 | 254 | 19.5 | £112.63 | 2 days | |
| DOR-A11020.0 | 20.00 | 166 | 254 | 20 | £69.77 | 2 days | |
| DOR-A11021.0 | 21.00 | 171 | 261 | 21 | £87.10 | 2 days | |
| DOR-A11022.0 | 22.00 | 176 | 268 | 22 | £93.02 | 2 days | |
| DOR-A1107/8 | 7/8 | 176 | 268 | 22.22 | £98.04 | 2 days | |
| DOR-A1101 | 25.40 | 190 | 290 | 25.4 | £117.65 | 2 days |
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